Association between the number of pulls and adverse neonatal/maternal outcomes in vacuum-assisted delivery

Abstract Objectives To determine the association between the number of pulls during vacuum-assisted deliver and neonatal and maternal complications. Methods This was a single-center observational study using a cohort of pregnancies who underwent vacuum-assisted delivery from 2013 to 2020. We excluded pregnancies transitioning to cesarean section after a failed attempt at vacuum-assisted delivery. The number of pulls to deliver the neonate was categorized into 1, 2, 3, and ≥4 pulls. We used logistic regression models to investigate the association between the number of pulls and neonatal intensive care unit (NICU) admission and maternal composite outcome (severe perineal laceration, cervical laceration, transfusion, and postpartum hemorrhage ≥500 mL). Results We extracted 480 vacuum-assisted deliveries among 7,321 vaginal deliveries. The proportion of pregnancies receiving 1, 2, 3, or ≥4 pulls were 51.9, 28.3, 10.8, and 9.0%, respectively. The crude prevalence of NICU admission with 1, 2, 3, and ≥4 pulls were 10.8, 16.2, 15.4, and 27.9%, respectively. The prevalence of NICU admission, amount of postpartum hemorrhage, and postpartum hemorrhage ≥500 mL were significantly different between the four groups. Multivariable logistic regression analysis found the prevalence of NICU admission in the ≥4 pulls group was significantly higher compared with the 1 pull group (adjusted odds ratio, 3.3; 95% confidence interval, 1.4–7.8). In contrast, maternal complications were not significantly associated with the number of pulls. Conclusions Vacuum-assisted delivery with four or more pulls was significantly associated with an increased risk of NICU admission. However, the number of pulls was not associated with maternal complications.

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Association Between Operation Duration of Total Knee Arthroplasty and Risk of Blood Transfusion Events: A Secondary Analysis Based on Cohort Study in Singapore

10.21203/rs.3.rs-1119129/v1 ◽

2021 ◽

Author(s):

Bo Liu ◽

Yue He ◽

Junpeng Pan ◽

Zhijie Wang

Keyword(s):

Logistic Regression ◽

Cohort Study ◽

Blood Transfusion ◽

Secondary Analysis ◽

Perioperative Period ◽

Multivariable Logistic Regression Analysis ◽

Logistic Regression Models ◽

Increased Risk ◽

Total Knee ◽

Operation Duration

Abstract BackgroundThe purpose of our research is to explore the association between operation duration and the risk of blood transfusion in the patients undergoing TKA.MethodsThis study was a secondary analysis based on the data of a single-center retrospective cohort study in Singapore. The independent variable was the operation duration, and the dependent variable was the risk of blood transfusion events in the perioperation. we analyzed the risk factors of blood transfusion in the Perioperative period by univariate logistic regression, then, multivariable logistic regression analysis was performed adjusting for variables that might affect the operation duration of TKA and the risk of blood transfusion events. Additional analyses examined this association by the subgroup analysis by using stratified multivariate logistic regression models.ResultsAmong 2,622 patients, 153 (5.8%) had blood transfusion in perioperative period. The older (OR=1.051 ,95% CI:1.030, 1.073), the lower BMI (OR=0.939,95% CI: 0.903,0.976),the lower Hb (OR=0.603,95% CI: 0.541 6.132), the DM on insulin (OR=2.542,95%CI:1.054, 6.132), the Bilateral TKA(OR=3.202, 95%CI:2.087, 4.913), the within CHF (OR=4.600, 95% CI :1.685, 12.563), the Cr≥2mg/dl (OR=7.246, 95% CI:2.739, 19.166), the higher ASA status (OR=6.439, 95% CI:2.403, 17.249), the higher risk of blood transfusion (P<0.05).The operation duration was positively correlated with perioperative blood transfusion. We demonstrated that the risk of blood transfusion increased by 1.1% for 1-minute increase in operation duration (OR = 1.011,95% CI: 1.004,1.018). ConclusionOur research shows that the longer the TKA operation duration, the higher the incidence of blood transfusion. The risk of blood transfusion events increases by 66% for every 1-hour increase in operation duration. Compared with patients with operation duration＜100 minutes, patients with operation duration more than 100 minutes have an increased risk of blood transfusion events by 56.8%.

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Association Between Placental Location and Neonatal Outcomes in Manual Fundal Pressure-Assisted Vaginal Deliveries: A Retrospective Cohort Study

10.21203/rs.3.rs-770612/v1 ◽

2021 ◽

Author(s):

Kyosuke Kamijo ◽

Daisuke Shigemi ◽

Richard H Kaszynski ◽

Mikio Nakajima

Keyword(s):

Logistic Regression ◽

Neonatal Resuscitation ◽

Adverse Outcomes ◽

Neonatal Outcomes ◽

Multivariable Logistic Regression Analysis ◽

Composite Outcome ◽

Lateral Group ◽

Vaginal Deliveries ◽

Increased Risk ◽

Fundal Pressure

Abstract Purpose: Manual fundal pressure (MFP) is globally used to assist vaginal deliveries during the second stage of labor; however, there is insufficient evidence on the risk factors in MFP-assisted vaginal deliveries for adverse neonatal outcomes. The aim of the present study was to investigate the association between placental location and neonatal outcomes in MFP-assisted vaginal deliveries.Methods: The present was a single-center observational study using a cohort of all MFP-assisted vaginal singleton deliveries from 2016 to 2020. Placental location was divided into two categories: posterior-lateral and anterior-fundal. The primary outcome was a neonatal adverse composite including umbilical artery blood pH <7.2, Apgar score <7 at 5 min, neonatal intensive care unit admission and neonatal resuscitation. We used logistic regression models to investigate the association between placental location and neonatal outcomes. Results: We extracted 522 MFP-assisted deliveries among 5053 vaginal deliveries. The proportion of posterior-lateral and anterior-fundal placentation was 239 (45.8%) and 283 (54.2%), respectively. The crude prevalence of neonatal composite outcome for posterior-lateral and anterior-fundal placentation was 69 (28.9%) and 112 (39.6%), respectively. The prevalence of neonatal composite outcome in the anterior-fundal group was significantly higher than that in the posterior-lateral group. Multivariable logistic regression analysis found that the prevalence of neonatal adverse outcome in the anterior-fundal group was significantly higher compared with the posterior-lateral group (adjusted odds ratio, 1.55; 95% confidence interval, 1.05–2.28).Conclusion: Anterior-fundal placentation was significantly associated with an increased risk of neonatal adverse outcomes compared to posterior-lateral placentation in MFP-assisted vaginal deliveries.

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OP0034 DOES THE RISK OF VENOUS THROMBOEMBOLISM VARY WITH DISEASE ACTIVITY IN RHEUMATOID ARTHRITIS?

Annals of the Rheumatic Diseases ◽

10.1136/annrheumdis-2020-eular.353 ◽

2020 ◽

Vol 79 (Suppl 1) ◽

pp. 23.2-24

Author(s):

V. Molander ◽

H. Bower ◽

J. Askling

Keyword(s):

Rheumatoid Arthritis ◽

Logistic Regression ◽

Venous Thromboembolism ◽

Disease Activity ◽

Das28 Score ◽

Logistic Regression Models ◽

Highly Active ◽

Increased Risk ◽

Das28 Remission ◽

One Year

Background:Patients with rheumatoid arthritis (RA) are at increased risk for venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE) (1). Several established risk factors of VTE, such as age, immobilization and comorbid conditions, occur more often patients with RA (2). In addition, inflammation may in itself also increase VTE risk by upregulating procoagolatory factors and causing endothelial damage (3). Recent reports indicate an increased risk of VTE in RA patients treated with JAK-inhibitors (4), pointing to the need to better understand how inflammation measured as clinical RA disease activity influences VTE risk.Objectives:To investigate the relationship between clinical RA disease activity and incidence of VTE.Methods:Patients with RA were identified from the Swedish Rheumatology Quality Register (SRQ) between July 1st2006 and December 31st2017. Clinical rheumatology data for these patients were obtained from the visits recorded in SRQ, and linked to national registers capturing data on VTE events and comorbid conditions. For each such rheumatologist visit, we defined a one-year period after the visit and determined whether a VTE event had occurred within this period or not. A visit followed by a VTE event was categorized as a case, all other visits were used as controls. Each patient could contribute to several visits. The DAS28 score registered at the visit was stratified into remission (0-2.5) vs. low (2.6-3.1), moderate (3.2-5.1) and high (>5.1) disease activity. Logistic regression with robust cluster standard errors was used to estimate the association between the DAS28 score and VTE.Results:We identified 46,311 patients with RA who contributed data from 320,094 visits. Among these, 2,257 visits (0.7% of all visits) in 1345 unique individuals were followed by a VTE within the one-year window. Of these, 1391 were DVT events and 866 were PE events. Figure 1 displays the absolute probabilities of a VTE in this one-year window, and odds ratios for VTE by each DAS28 category, using DAS28 remission as reference. The one-year risk of a VTE increased from 0.5% in patients in DAS28 remission, to 1.1% in patients with DAS28 high disease activity (DAS28 above 5.1). The age- and sex-adjusted odds ratio for a VTE event in highly active RA compared to RA in remission was 2.12 (95% CI 1.80-2.47). A different analysis, in which each patient could only contribute to one visit, yielded similar results.Figure 1.Odds ratios (OR) comparing the odds of VTE for DAS28 activity categories versus remission. Grey estimates are from unadjusted logistic regression models, black estimates are from logistic regression models adjusted for age and sex. Absolute one-year risk of VTE are estimated from unadjusted models.Conclusion:This study demonstrates a strong association between clinical RA inflammatory activity as measured through DAS28 and risk of VTE. Among patients with high disease activity one in a hundred will develop a VTE within the coming year. These findings highlight the need for proper VTE risk assessment in patients with active RA, and confirm that patients with highly active RA, such as those recruited to trials for treatment with new drugs, are already at particularly elevated risk of VTE.References:[1]Holmqvist et al. Risk of venous thromboembolism in patients with rheumatoid arthritis and association with disease duration and hospitalization. JAMA. 2012;308(13):1350-6.[2]Cushman M. Epidemiology and risk factors for venous thrombosis. Semin Hematol. 2007;44(2):62-9.[3]Xu J et al. Inflammation, innate immunity and blood coagulation. Hamostaseologie. 2010;30(1):5-6, 8-9.[4]FDA. Safety trial finds risk of blood clots in the lungs and death with higher dose of tofacitinib (Xeljanz, Xeljanz XR) in rheumatoid arthritis patients; FDA to investigate. 2019.Acknowledgments:Many thanks to all patients and rheumatologists persistently filling out the SRQ.Disclosure of Interests:Viktor Molander: None declared, Hannah Bower: None declared, Johan Askling Grant/research support from: JA acts or has acted as PI for agreements between Karolinska Institutet and the following entities, mainly in the context of the ARTIS national safety monitoring programme of immunomodulators in rheumatology: Abbvie, BMS, Eli Lilly, Merck, MSD, Pfizer, Roche, Samsung Bioepis, Sanofi, and UCB Pharma

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Prognostic significance of international normalised ratio and prothrombin time in Chinese acute ischaemic stroke patients

Postgraduate Medical Journal ◽

10.1136/postgradmedj-2021-141204 ◽

2022 ◽

pp. postgradmedj-2021-141204

Author(s):

Shoujiang You ◽

Qiao Han ◽

Xiaofeng Dong ◽

Chongke Zhong ◽

Huaping Du ◽

...

Keyword(s):

Logistic Regression ◽

Ischaemic Stroke ◽

Prothrombin Time ◽

Hospital Discharge ◽

Acute Ischaemic Stroke ◽

Regression Models ◽

Logistic Regression Models ◽

Risk Of Death ◽

Increased Risk ◽

International Normalised Ratio

BackgroundWe investigated the association between international normalised ratio (INR) and prothrombin time (PT) levels on hospital admission and in-hospital outcomes in acute ischaemic stroke (AIS) patients.MethodsA total of 3175 AIS patients enrolled from December 2013 to May 2014 across 22 hospitals in Suzhou city were included. We divided patients into four groups according to their level of admission INR: (<0.92), Q2 (0.92–0.98), Q3 (0.98–1.04) and Q4 (≥1.04) and PT. Logistic regression models were used to estimate the effect of INR and PT on death or major disability (modified Rankin Scale score (mRS)>3), death and major disability (mRS scores 4–5) separately on discharge in AIS patients.ResultsHaving an INR level in the highest quartile (Q4) was associated with an increased risk of death or major disability (OR 1.69; 95% CI 1.23 to 2.31; P-trend=0.001), death (OR, 2.64; 95% CI 1.12 to 6.19; P-trend=0.002) and major disability on discharge (OR, 1.56; 95% CI 1.13 to 2.15; P-trend=0.008) in comparison to Q1 after adjusting for potential covariates. Moreover, in multivariable logistic regression models, having a PT level in the highest quartile also significantly increased the risk of death (OR, 2.38; 95% CI 1.06 to 5.32; P-trend=0.006) but not death or major disability (P-trend=0.240), major disability (P-trend=0.606) on discharge.ConclusionsHigh INR at admission was independently associated with death or major disability, death and major disability at hospital discharge in AIS patients and increased PT was also associated with death at hospital discharge.

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The association of frontal recess anatomy and mucosal disease on the presence of chronic frontal sinusitis: a computed tomographic analysis

Rhinology Journal ◽

10.4193/rhino13.110 ◽

2014 ◽

Vol 52 (3) ◽

pp. 208-214

Author(s):

W.-S. Lai ◽

P.-L. Yang ◽

C.-H. Lee ◽

Y.-Y. Lin ◽

Y.-H. Chu ◽

...

Keyword(s):

Logistic Regression ◽

Strong Association ◽

Ct Scans ◽

Mucosal Inflammation ◽

Frontal Sinusitis ◽

Logistic Regression Models ◽

Computed Tomographic ◽

Frontal Recess ◽

Inflammatory Conditions ◽

Increased Risk

Objectives: The frontal sinus has the most complex and variable drainage routes of all paranasal sinus regions. The goal of this study was to identify these anatomical factors and inflammation areas relating to chronic frontal sinusitis by comparing radiological presentations in patients with and without frontal sinusitis. Methods: All adult patients with chronic rhinosinusitis who had received computed tomography (CT) scans of the nasal cavities and paranasal sinuses between October 2010 and September 2011. Logistic regression analysis was used to compare the distribution of various frontal recess cells and surrounding inflammatory conditions in patients with and without frontal sinusitis. Results: Analysis of 240 sides of CT scans was performed with 66 sides excluded. The opacification of the frontal recess and sinus lateralis demonstrated a strong association with an increased presence of frontal sinusitis by multiple logistic regression models. Conclusion: Opacification of the frontal recess and sinus lateralis was found to be associated with a significantly increased risk of frontal sinusitis and developing severe blockage of drainage pathways. It provides evidence that mucosal inflammation disease in these two areas is a very important factor leading to chronic frontal sinusitis.

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Labor and Delivery Outcomes with the Sequential Use of Misoprostol Followed by Cervical Foley Catheter

American Journal of Perinatology ◽

10.1055/s-0040-1713818 ◽

2020 ◽

Author(s):

Maeve K. Hopkins ◽

Rebecca F. Hamm ◽

Sindhu K. Srinivas ◽

Lisa D. Levine

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Neonatal Intensive Care Unit ◽

Maternal Morbidity ◽

Neonatal Intensive Care ◽

Foley Catheter ◽

Catheter Placement ◽

Increased Risk ◽

Nicu Admission ◽

Time To Delivery

Objective Studies demonstrate shorter time to delivery with concurrent use of misoprostol and cervical Foley catheter. However, concurrent placement may not be feasible. If misoprostol is used to start an induction, little is known regarding the benefit of sequentially using Foley catheter. We examine obstetrical outcomes in women with Foley catheter placed after misoprostol compared with those only requiring misoprostol. Study design Retrospective cohort study of singleton pregnancies, intact membranes, and an unfavorable cervix (Bishop score of ≤6 and dilation ≤2 cm) undergoing term induction May 2013 to June 2015. We compared obstetrical outcomes between women receiving misoprostol alone versus those that had a Foley catheter placed after misoprostol. Outcomes are mode of delivery, time to delivery, chorioamnionitis, admission to neonatal intensive care unit, and maternal morbidity. Chi-square and Fisher's exact tests were used for categorical variables, Mann–Whitney U-tests compared continuous variables. Results Among 364 women, 281 began induction with misoprostol alone. A total of 135 (48%) subsequently had a Foley catheter placed. Characteristics were similar between the groups, although nulliparity and cervical dilation <1 cm at start of induction were more likely to have subsequent Foley catheter. Women with Foley catheter placement after misoprostol had a longer median time to delivery (15 vs. 11 hours, p < 0.001), twofold higher rate of cesarean (42 vs. 26%, odds ratio: 2.1, 95% confidence interval: 1.26–3.44, p = 0.004), and increased risk of neonatal intensive care unit (NICU) admission (21 vs. 11%, p = 0.024). There was a nonsignificant increased risk of chorioamnionitis (12 vs. 7%, p = 0.1) and maternal morbidity (15 vs. 8%, p = 0.08) in the misoprostol followed by Foley catheter group. Conclusion In women receiving misoprostol for induction, nulliparas and those with dilation <1 cm are more likely to have subsequent Foley catheter placement. Sequential use of cervical Foley catheter after misoprostol is associated with longer labor, higher cesarean rate, and increased NICU admission. Requirement of Foley catheter after misoprostol confers higher risk and may guide counseling. Key Points

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Sex Differences in the Association Between Food Insecurity and Obesity Among College Students

Current Developments in Nutrition ◽

10.1093/cdn/nzaa043_032 ◽

2020 ◽

Vol 4 (Supplement_2) ◽

pp. 181-181

Author(s):

Aseel El Zein ◽

Karla Shelnutt ◽

Sarah Colby ◽

Geoffrey Greene ◽

Wenjun Zhou ◽

...

Keyword(s):

College Students ◽

Logistic Regression ◽

Food Security ◽

Food Insecurity ◽

Cross Sectional Study ◽

High Food ◽

Cross Sectional ◽

Logistic Regression Models ◽

Food And Agriculture ◽

Increased Risk

Abstract Objectives This study aimed to assess the association between food insecurity and obesity and to examine whether it varies by sex. Methods A cross-sectional study was conducted in spring 2017 among college students from eight U.S. institutions. Participants (n = 683) completed the USDA Adult Food Security Survey and had their weight and height measured by researchers. Multivariate logistic regression models were used to estimate the sex-specific associations between food insecurity and obesity (BMI ≥ 30 kg/m2), after adjusting for socioeconomic covariates. Results Overall, 25.4% of students identified as food insecure and 10.5% were obese. The prevalence of obesity increased as the level of food insecurity increased, from 5.2% for those with high food security, 13.4% for those with marginal food security, to 17.4% and 21.6% for students with low and very low food security. In logistic regression analysis, marginal, low and very low food security students had an odds ratio of 2.83 (95% CI: 1.43, 5.57), 3.86 (95% CI: 1.88, 7.91), and 5.05 (95% CI:, 2.44, 10.48) of obesity compared to students with high food security, exhibiting a dose-response relationship. Among females, having marginal (OR = 4.21, 95% CI: 1.70, 9.75), low (OR = 4.51, 95% CI: 1.40, 12.47), or very low food security (OR = 7.08, 95% CI: 2.60, 18.41) predicted higher odds of obesity compared to female students with high food security. Among males, those with low food security had higher odds of obesity (OR = 6.40, 95% CI: 1.78, 20.7). Conclusions The association between food insecurity and obesity in U.S. college students remained after adjustment for multiple socio-economic factors. Overall, food insecure females experienced an increase in the risk of obesity as food insecurity increased; however, only males with low food security had an increased risk of obesity. Programs directed toward obesity prevention need to address any level of food insecurity as a risk factor in females, and target males with low food security. Although beyond the scope of this study, it is possible that programs to reduce food insecurity may help prevent obesity in college students. Funding Sources This material is based upon work that is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, under award number 2014–67,001-21,851.

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Does Flipping the Tubercle for Improved Cartilage Repair Exposure Increase the Risk for Arthrofibrosis?

Cartilage ◽

10.1177/1947603520968209 ◽

2020 ◽

pp. 194760352096820

Author(s):

Gergo Merkely ◽

Jakob Ackermann ◽

Emily Sheehy ◽

Andreas H. Gomoll

Keyword(s):

Logistic Regression ◽

Cartilage Repair ◽

Regression Models ◽

Case Control Study ◽

Level Of Evidence ◽

Logistic Regression Models ◽

Increased Risk ◽

Repair Procedure ◽

Control Study

Objective We sought to determine whether rates of postoperative arthrofibrosis following tibial tuberosity osteotomy (TTO) with complete mobilization of the fragment (TTO-HD) are comparable to TTOs where the hinge remained intact (TTO-HI). Design Patients who underwent TTO with concomitant cartilage repair procedure between January 2007 and May 2017, with at least 2 years of follow-up were included in this study. Postoperative reinterventions following TTO-HD and TTO-HI were assessed and multivariant logistic regression models were used to identify whether postoperative reinterventions can be attributed to either technique when controlled for defect size or defect number. Results A total of 127 patients (TTO-HD, n = 80; TTO-HI, n = 47) were included in this study. Significantly more patients in the TTO-HD group (31.2%) developed postoperative arthrofibrosis compared with TTO-HI (6.4%; P < 0.05). Multivariant logistic regression revealed that TTO-HD is an independent risk factor for predicting postoperative arthrofibrosis (OR 6.5, CI = 1.7-24.2, P < 0.05). Conclusion Patients who underwent TTO with distal hinge detachment and a proximally flipped tubercle for better exposure during concomitant cartilage repair were at a significantly higher risk of postoperative arthrofibrosis than patients with similar size and number of defects treated without mobilization of the tubercle. While certain procedures can benefit from larger exposure, surgeons should be aware of the increased risk of postoperative arthrofibrosis. Level of Evidence Level III, case-control study.

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Is rising BMI associated with an increased rate of clinically relevant pancreatic fistula after distal pancreatectomy for pancreatic adenocarcinoma?

Journal of Clinical Oncology ◽

10.1200/jco.2019.37.4_suppl.360 ◽

2019 ◽

Vol 37 (4_suppl) ◽

pp. 360-360

Author(s):

Evan Scott Glazer ◽

Yixuan Zhou ◽

Justin Drake ◽

Jeremiah Lee Deneve ◽

Stephen W Behrman ◽

...

Keyword(s):

Logistic Regression ◽

Regression Analysis ◽

Pancreatic Fistula ◽

Distal Pancreatectomy ◽

Logistic Regression Analysis ◽

Older Age ◽

Ductal Adenocarcinoma ◽

Multivariable Logistic Regression Analysis ◽

Term Survival ◽

Increased Risk

360 Background: Clinically relevant pancreatic fistula (CR-POPF), following distal pancreatectomy (DP) remains a clinical challenge. Prior studies investigating the relationship between body mass index (BMI) and CR-POPF have yielded conflicting results. We examined this relationship utilizing our institutional database and hypothesized that BMI is associated with CR-POPF in patients having DP for pancreatic ductal adenocarcinoma (PDAC). Methods: Patients who underwent DP for PDAC at a single institution from 2007 to 2018 were retrospectively reviewed. A CR-POPF was defined as ISGPS grade B or C fistula. Uni- and multi-variable logistic regression analysis to assess factors associated with CR-POPF following DP was performed, controlling for factors such as gland texture, operative drain placement, gender, and smoking status. Results: 78 patients met the inclusion criteria. 51% were female, 51% were Caucasian, and the average age was 59 ± 15 years. The median BMI was 26 (interquartile range 24 to 29). Overall, 19% (n = 15) of patients had a CR-POPF. With a mean follow up 2.8 ± 2.5 years, the presence of a CR-POPF was not associated with long-term survival (P = 0.17). On univariable logistic regression, older age was associated with a decreased risk of CR-POPF (OR = 0.95, P = 0.015) while increasing BMI was associated with an increased risk of CR-POPF (OR = 1.1, P = 0.044). After controlling for multiple factors on multivariable logistic regression analysis, BMI (OR = 1.12, P = 0.035) was the only factor associated with development of a CR-POPF while older age (OR = 0.94, P < 0.001) was slightly protective of CR-POPF development. Conclusions: For patients undergoing DP for PDAC, increasing BMI is associated with an increased risk of CR-POPF, independent of other factors. These findings should be considered during preoperative counseling. Although there is no specific cut-off for the association between BMI and CR-POPF, efforts to diminish the risk of CR-POPF should be focused on patients with higher BMI based on this data.

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Prevalence and population structure of Staphylococcus aureus nasal carriage in healthcare workers in a general population. The Tromsø Staph and Skin Study

Epidemiology and Infection ◽

10.1017/s0950268812000465 ◽

2012 ◽

Vol 141 (1) ◽

pp. 143-152 ◽

Cited By ~ 28

Author(s):

K. OLSEN ◽

M. SANGVIK ◽

G. S. SIMONSEN ◽

J. U. E. SOLLID ◽

A. SUNDSFJORD ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Logistic Regression ◽

Population Structure ◽

Regression Models ◽

Healthcare Workers ◽

Nasal Carriage ◽

Population Based ◽

Family Status ◽

Logistic Regression Models ◽

Increased Risk

SUMMARYHealthcare workers (HCWs) may be a reservoir for Staphylococcus aureus transmission to patients. We examined whether HCW status is associated with S. aureus nasal carriage and population structure (spa types) in 1302 women (334 HCWs) and 977 men (71 HCWs) aged 30–69 years participating in the population-based Tromsø Study in 2007–2008. Multivariable logistic regression models were used. While no methicillin-resistant S. aureus (MRSA) was isolated, overall, 26·2% of HCWs and 26·0% of non-HCWs were S. aureus nasal carriers. For women overall and women residing with children, the odds ratios for nasal carriage were 1·54 [95% confidence interval (CI) 1·09–2·19] and 1·86 (95% CI 1·14–3·04), respectively, in HCWs compared to non-HCWs. Moreover, HCWs vs. non-HCWs had a 2·17 and 3·16 times higher risk of spa types t012 and t015, respectively. This supports the view that HCWs have an increased risk of S. aureus nasal carriage depending on gender, family status and spa type.

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