scholarly journals A national Swedish case-control study investigating incidence and factors associated with idiopathic intracranial hypertension

Cephalalgia ◽  
2021 ◽  
pp. 033310242110241
Author(s):  
Anna Sundholm ◽  
Sarah Burkill ◽  
Elisabet Waldenlind ◽  
Shahram Bahmanyar ◽  
A Ingela M Nilsson Remahl
Keyword(s):  
Risk Factors ◽  
General Population ◽  
Intracranial Hypertension ◽  
Idiopathic Intracranial Hypertension ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Control Group ◽  
Factors Associated ◽  
Control Study

Objective To study the incidence of idiopathic intracranial hypertension in Sweden and to explore whether previously proposed risk factors are associated with idiopathic intracranial hypertension by investigating the odds of exposure one year prior to diagnosis in patients compared to controls. Methods Using Swedish health care registers and validated diagnostic algorithms, idiopathic intracranial hypertension patients diagnosed between 2000–2016 were compared with randomly selected matched controls, five from the general population and five with obesity. Results We identified 902 idiopathic intracranial hypertension patients and 4510 matched individuals in each control group. Mean incidence among inhabitants ≥18 years of age was 0.71 per 100,000; rising from 0.53 in 2000–2005 to 0.95 in 2012–2016. There were increased odds for idiopathic intracranial hypertension patients compared to general population for exposure to: kidney failure (odds ratio =13.2 (4.1–42.0)), arterial hypertension (odds ratio =17.5 (10.5–29.3)), systemic lupus erythematosus (odds ratio =13.8 (4.3–44.7)), tetracyclines, sulphonamides, lithium, and corticosteroids. In obese controls, odds ratios were also significantly increased for these exposures. Hormonal contraceptive use and exposure to pregnancy did not appear to be associated factors for idiopathic intracranial hypertension development. Conclusions The incidence of idiopathic intracranial hypertension in Sweden is lower relative to reports from other countries but is on the rise. This case-control study confirms several previously reported risk factors associated with idiopathic intracranial hypertension.

scholarly journals Risk factors associated with early childhood caries – a case control study

2016 ◽  
Vol 31 (2) ◽  
pp. 83
Author(s):  
Marina De Deus Moura Lima ◽  
Zacarias Soares Brito-Neto ◽  
Heylane Oliveira Amaral ◽  
Cacilda Castelo Branco Lima ◽  
Marcoeli Silva de Moura ◽  
...  
Keyword(s):  
Risk Factors ◽  
Early Childhood ◽  
Early Childhood Caries ◽  
Case Control Study ◽  
Case Control ◽  
Control Group ◽  
Factors Associated ◽  
History Of ◽  
Control Study ◽  
Childhood Caries

Objective: The aim of this study was to determine the risk factors associated with early childhood caries (ECC).Methods: It was an observational retrospective case-control study. The case group consisted of all patients diagnosed with ECC in the records of an active program of maternal and child care. The control group was composed of an equal number of children, matched for gender and age, who attended the program and did not have ECC. The process of data collection consisted of completing a pre-established schedule to analyse variables related to the mother/caregiver and child.Statisticalanalysis was performed using the chi-squared and odds ratio (OR), with alpha (α) = 0.05.Results: History of caries in the mother (OR=2.61; CI 95%=1.45-4.67) and father (OR=1.72; CI 95%=1.02-2.89) were key determinants in the child being diagnosed with ECC.Conclusions: The risk factors associated with ECC were the following: no oral hygiene acceptance, nocturnal feeding duration of more than 16 months, a daily intake of sugar greater than 4 times a day, a Baume type II maxillary arch, fewer than 3 consultations with the program, and a history of decay in the parents.

scholarly journals Epilepsy and mortality: a retrospective cohort analysis with a nested case–control study identifying causes and risk factors from primary care and linkage-derived data

BMJ Open ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. e052841
Author(s):  
Gabriella Wojewodka ◽  
Martin C Gulliford ◽  
Mark Ashworth ◽  
Mark P Richardson ◽  
Leone Ridsdale
Keyword(s):  
Risk Factors ◽  
Primary Care ◽  
General Population ◽  
Cause Of Death ◽  
Retrospective Cohort ◽  
Case Control Study ◽  
Case Control ◽  
Factors Associated ◽  
Nested Case Control ◽  
Control Study

ObjectivesPeople with epilepsy (PWE) have a higher mortality rate than the general population. Epilepsy-related deaths have increased despite all-cause mortality decreasing in the general population pre-COVID-19. We hypothesised that clinical and lifestyle factors may identify people more at risk.DesignWe used a retrospective cohort study to explore cause of death and a nested case–control study to identify risk factors.SettingWe explored factors associated with mortality using primary care population data from 1 April 2004 to 31 March 2014. Data were obtained from the Clinical Practice Research Datalink which compiles anonymised patient data from primary care in the UK. Cause of death data was supplemented from the Office of National Statistics when available.ParticipantsThe analysis included 70 431 PWE, with 11 241 registered deaths.ResultsThe number of deaths within the database increased by 69% between the first and last year of the study. Epilepsy was considered as a contributing cause in approximately 45% of deaths of PWE under 35. Factors associated with increased risk of death included attendance at emergency departments and/or emergency admissions (OR 3.48, 95% CI 3.19 to 3.80), antiepileptic drug (AED) polytherapy (2 AEDs: OR 1.60, 95% CI 1.51 to 1.71; 3 AEDs: OR 2.06, 95% CI 1.86 to 2.29; 4+AEDs: OR 2.62, 95% CI 2.23 to 3.08), status epilepticus (OR 2.78, 95% CI 1.64 to 4.71), depression (OR 1.67, 95% CI 1.57 to 1.76) and injuries (OR 1.54, 95% CI 1.43 to 1.67). No seizures in the prior year (OR 0.52, 95% CI 0.41 to 0.65).ConclusionOur results add to existing evidence that deaths in epilepsy are increasing. Future studies could focus on identifying PWE at high risk and addressing them with clinical interventions or better self-management. Identifying specific risk factors for younger people should be a priority as epilepsy may be a factor in close to half of deaths of PWE under 35 years of age.

scholarly journals Risk Factors of Infantile Diarrhea (A Case-Control Study)

2019 ◽  
Vol 32 (5-6) ◽  
pp. 125-34
Author(s):  
Iskandar Z. Lubis
Keyword(s):  
Risk Factors ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Bottle Feeding ◽  
Control Group ◽  
Case Group ◽  
Supplementary Food ◽  
Infantile Diarrhea ◽  
Control Study

From March thru April 1990 an unmatched case-control study had been conducted at the pediatric out-patient Clinic of Dr. Pirngadi Hospital Medan to assess risk factors of infantile diarrhea. The  study population were infants, aged younger than 21 months. The mothers of the infants were interviewed, using structured questionnaires. Sample size, calculated by means of formula, with 95 % level of confidence, 90 % power of study, 50% estimated proportion of exposure in the control-group and 2.0 estimated odds ratio, was 121. All infants with diarrhea were included in the case-group until a total number of 124 infants were reached. One control, an infant without diarrhea, was taken for each case from the nearest sequence of attendance after the case. A total of 20 risk factors were tested. Exposure was indicated from the last day before illness. Computerized statistical analysis was performed to calculate odds ratio, 95 % confidence interval and two tailed significance testing for qualitative dichotomic data by means of Chi square test. A total of nine factors were confirmed as risk factors of infantile diarrhea i.e mothers age than 20 years, working mother, not cleaning nipple before suckling the baby bottle feeding, having only one nursing botlle/teat, not ready for use nursing bottle/teat, giving left over supplementary food without reheating, no band-washing before giving supplementary food and malnutrition. The result of this study can be emphasized in health education, especially in diarrheal disease control of infancy; Further well-designed studies are needed.

scholarly journals Risk Factors for Herpes Zoster in Patients with Chronic Kidney Disease: A Case-Control Study

Vaccines ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 963
Author(s):  
Zhenxing Li ◽  
Qiao Wang ◽  
Jiahui Ma ◽  
Zhi Li ◽  
Dong Huang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Chronic Kidney Disease ◽  
Herpes Zoster ◽  
Kidney Disease ◽  
Odds Ratio ◽  
Case Control Study ◽  
Case Control ◽  
Control Group ◽  
Dialysis Therapy ◽  
Control Study

(1) Background: Chronic kidney disease (CKD) increases the susceptibility to the presence of herpes zoster (HZ). Little is known about the risk factors of HZ in CKD patients; (2) Methods: This is a case-control study. CKD patients diagnosed with HZ between January 2015 and June 2021 in a tertiary hospital were identified. One age- and gender- matched control was paired for each case, matched to the date of initial HZ diagnosis. Conditional multiple logistic regression was used to evaluate the risk factors associated with the presence of HZ; (3) Results: Forty-seven HZ patients and controls were identified. In general, about 73.40% (69 out of 94) patients were classified at IV to V stages of CKD. Immunosuppressive agents (p = 0.0012) and dialysis therapy (p = 0.021) were reported more frequently in the HZ cohort. Compared with the control group, the total white cell count and lymphocyte count were significantly lower in the HZ group (p value of 0.032 and 0.003, respectively). The conditional logistics regression model revealed that previous immunosuppressants administration (odds ratio: 10.861, 95% CI: 2.092~56.392, p = 0.005) and dialysis therapy (odds ratio: 3.293, 95% CI: 1.047~10.355, p = 0.041) were independent risk factors of HZ in the CKD population; (4) Conclusions: Dialysis and immunosuppressants therapy were associated with greater risk of HZ disease in CKD patients. Further guideline may highlight the necessity of zoster vaccine for patients with CKD, who undertake associated treatment.

scholarly journals Risk factors for constant glycemic variability in pregnant women: a case-control study

2020 ◽  
Vol 73 (suppl 5) ◽  
Author(s):  
Grasiela Martins Barros ◽  
Lyvia da Silva Figueiredo ◽  
Priscilla Alfradique de Souza ◽  
Beatriz Paiva e Silva de Souza ◽  
Helen Campos Ferreira ◽  
...  
Keyword(s):  
Risk Factors ◽  
Pregnant Women ◽  
Case Control Study ◽  
Glycemic Variability ◽  
Case Control ◽  
Care Quality ◽  
Control Group ◽  
Family History Of Diabetes ◽  
Factors Associated ◽  
Control Study

ABSTRACT Objective: to identify the factors associated with pregnancy that influence constant glycemic variability. Method: a case-control study with random sampling. The medical records of 417 pregnant women were divided into case group (200 pregnant women with constant glycemic variability) and control group (217 pregnant women without constant glycemic variability). Data were collected from 2009 to 2015. Results: pregnant women aged 25 years and over, with family history of diabetes mellitus, with systemic arterial hypertension, overweightness or obesity, sedentarism and polycystic ovarian syndrome are more likely to present changes in blood glucose. Conclusion: The study demonstrated that risk factors associated with pregnancy increase the risk of constant glycemic variability. The findings will allow reassessment of the interventions during pregnancy, providing an increase in nursing care quality.

scholarly journals Risk factors for idiopathic intracranial hypertension in men: A case–control study

2010 ◽  
Vol 290 (1-2) ◽  
pp. 86-89 ◽  
Author(s):  
J. Alexander Fraser ◽  
Beau B. Bruce ◽  
Janet Rucker ◽  
Lisa-Ann Fraser ◽  
Edward J. Atkins ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intracranial Hypertension ◽  
Idiopathic Intracranial Hypertension ◽  
Case Control Study ◽  
Case Control ◽  
Control Study

Risk Factors for Subsequent Diagnosis of Prosthetic Joint Infection

2010 ◽  
Vol 31 (3) ◽  
pp. 298-301 ◽  
Author(s):  
Saima Aslam ◽  
Charles Reitman ◽  
Rabih O. Darouiche
Keyword(s):  
Risk Factors ◽  
Prosthetic Joint Infection ◽  
Odds Ratio ◽  
Case Control Study ◽  
Joint Infection ◽  
Case Control ◽  
Site Infection ◽  
Factors Associated ◽  
Prosthetic Joint ◽  
Control Study

The factors associated with prosthetic joint infection for 126 patients in a case-control study were as follows: bacteremia during the previous year (odds ratio [OR], 4.25 [95% confidence interval {CI}, 1.3–3.8]), nonsurgical trauma to the prosthetic joint (OR, 21.5 [95% CI, 2.6–175.2]), and surgical site infection (OR, 5.25 [95% CI, 1.7–16.7]).

scholarly journals Predictive indicators of severe COVID-19 independent of comorbidities and advanced age: a nested case−control study

2020 ◽  
Vol 148 ◽  
Author(s):  
Xinjie Li ◽  
Tuohutaerbieke Marmar ◽  
Qiang Xu ◽  
Jing Tu ◽  
Yue Yin ◽  
...  
Keyword(s):  
Risk Factors ◽  
Case Control Study ◽  
Kidney Injury ◽  
Case Control ◽  
Advanced Age ◽  
Control Group ◽  
Case Group ◽  
Factors Associated ◽  
Nested Case Control ◽  
Control Study

Abstract To determine what exacerbate severity of the COVID-19 among patients without comorbidities and advanced age and investigate potential clinical indicators for early surveillance, we adopted a nested case−control study, design in which severe cases (case group, n = 67) and moderate cases (control group, n = 67) of patients diagnosed with COVID-19 without comorbidities, with ages ranging from 18 to 50 years who admitted to Wuhan Tongji Hospital were matched based on age, sex and BMI. Demographic and clinical characteristics, and risk factors associated with severe symptoms were analysed. Percutaneous oxygen saturation (SpO2), lymphocyte counts, C-reactive protein (CRP) and IL-10 were found closely associated with severe COVID-19. The adjusted multivariable logistic regression analyses revealed that the independent risk factors associated with severe COVID-19 were CRP (OR 2.037, 95% CI 1.078–3.847, P = 0.028), SpO2 (OR 1.639, 95% CI 0.943–2.850, P = 0.080) and lymphocyte (OR 1.530, 95% CI 0.850–2.723, P = 0.148), whereas the changes exhibited by indicators influenced incidence of disease severity. Males exhibited higher levels of indicators associated with inflammation, myocardial injury and kidney injury than the females. This study reveals that increased CRP levels and decreased SpO2 and lymphocyte counts could serve as potential indicators of severe COVID-19, independent of comorbidities, advanced age and sex. Males could at higher risk of developing severe symptoms of COVID-19 than females.

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