94. A Review of Quantitative Studies on Laboratory Fume Hood Performance and its Related Factors — II. Estimating the Odds Ratios Using Logistic Regression

2002 ◽  
Author(s):  
K. Ahn ◽  
M. Ellenbecker ◽  
S. Woskie ◽  
L. DiBerardinis
Keyword(s):  
Logistic Regression ◽  
Fume Hood ◽  
Odds Ratios ◽  
Related Factors ◽  
Quantitative Studies

scholarly journals Gender composition in occupations and branches and medically certified sick leave: a prospective population study

2021 ◽  
Author(s):  
Ulrik Lidwall
Keyword(s):  
Logistic Regression ◽  
Sick Leave ◽  
Population Study ◽  
Gender Segregation ◽  
Gender Composition ◽  
Occupational Hazards ◽  
Odds Ratios ◽  
Related Factors ◽  
Relative Risks ◽  
Health Related

Abstract Objective To investigate whether gender-segregated occupations and branches are associated with future medically certified sick leave for women and men. Methods All gainfully employed residents in Sweden in December 31st 2014 aged 16–69 years (n = 4 473 964) were identified in national registers. Subjects working in segregated (61–90%) and extremely segregated (> 90%) occupations and branches were evaluated v/s subjects in gender-integrated occupations and branches (40–60%). Combinations of segregation by occupation and branch were also investigated. Two-year prospective medically certified sick leaves (> 14 days) were evaluated using logistic regression with odds ratios recalculated to relative risks (RR), adjusted for work, demographic and health related factors. Results The sick leave risk was higher for those working in extremely female-dominated occupations (women RR 1.06 and men RR 1.13), and in extremely female-dominated branches (women RR 1.09 and men RR 1.12), and for men in extremely male-dominated branches (RR 1.04). The sick leave risk was also higher for both women and men in female-dominated occupations regardless of the gender segregation in the branch they were working in. However, the differences in sick leave risks associated with gender segregation were considerably smaller than the differences between occupations and branches in general. Conclusions Gender segregation in occupations and branches play a role for sick leave among women and men, especially within extremely female-dominated occupations and branches. However, gender segregation appears to be subordinate to particular occupational hazards faced in diverse occupations and branches.

Intimate Partner Violence and its Association With Contraceptive Use Among Women in Pakistan

2019 ◽  
Vol 34 (Spring 2019) ◽  
pp. 157-173
Author(s):  
Kashif Siddique ◽  
Rubeena Zakar ◽  
Ra’ana Malik ◽  
Naveeda Farhat ◽  
Farah Deeba
Keyword(s):  
Intimate Partner Violence ◽  
Logistic Regression ◽  
Partner Violence ◽  
Contraceptive Use ◽  
Binary Logistic Regression ◽  
Intimate Partner ◽  
Married Women ◽  
Reproductive Age ◽  
Outcome Variable ◽  
Odds Ratios

The aim of this study is to find the association between Intimate Partner Violence (IPV) and contraceptive use among married women in Pakistan. The analysis was conducted by using cross sectional secondary data from every married women of reproductive age 15-49 years who responded to domestic violence module (N = 3687) of the 2012-13 Pakistan Demographic and Health Survey. The association between contraceptive use (outcome variable) and IPV was measured by calculating unadjusted odds ratios and adjusted odds ratios with 95% confidence intervals using simple binary logistic regression and multivariable binary logistic regression. The result showed that out of 3687 women, majority of women 2126 (57.7%) were using contraceptive in their marital relationship. Among total, 1154 (31.3%) women experienced emotional IPV, 1045 (28.3%) women experienced physical IPV and 1402 (38%) women experienced both physical and emotional IPV together respectively. All types of IPV was significantly associated with contraceptive use and women who reported emotional IPV (AOR 1.44; 95% CI 1.23, 1.67), physical IPV (AOR 1.41; 95% CI 1.20, 1.65) and both emotional and physical IPV together (AOR 1.49; 95% CI 1.24, 1.72) were more likely to use contraceptives respectively. The study revealed that women who were living in violent relationship were more likely to use contraceptive in Pakistan. Still there is a need for women reproductive health services and government should take initiatives to promote family planning services, awareness and access to contraceptive method options for women to reduce unintended or mistimed pregnancies that occurred in violent relationships.

scholarly journals COVID-19-Related Changes in Perceived Household Food Waste in the United States: A Cross-Sectional Descriptive Study

2021 ◽  
Vol 18 (3) ◽  
pp. 1104
Author(s):  
Kelly Cosgrove ◽  
Maricarmen Vizcaino ◽  
Christopher Wharton
Keyword(s):  
Logistic Regression ◽  
Food Waste ◽  
The United States ◽  
Food Groups ◽  
Related Factors ◽  
Cross Sectional ◽  
Household Level ◽  
Binomial Logistic Regression ◽  
Household Food ◽  
Fresh Vegetables

Food waste contributes to adverse environmental and economic outcomes, and substantial food waste occurs at the household level in the US. This study explored perceived household food waste changes during the COVID-19 pandemic and related factors. A total of 946 survey responses from primary household food purchasers were analyzed. Demographic, COVID-19-related household change, and household food waste data were collected in October 2020. Wilcoxon signed-rank was used to assess differences in perceived food waste. A hierarchical binomial logistic regression analysis was conducted to examine whether COVID-19-related lifestyle disruptions and food-related behavior changes increased the likelihood of household food waste. A binomial logistic regression was conducted to explore the contribution of different food groups to the likelihood of increased food waste. Perceived food waste, assessed as the estimated percent of food wasted, decreased significantly during the pandemic (z = −7.47, p < 0.001). Food stockpiling was identified as a predictor of increased overall food waste during the pandemic, and wasting fresh vegetables and frozen foods increased the odds of increased food waste. The results indicate the need to provide education and resources related to food stockpiling and the management of specific food groups during periods of disruption to reduce food waste.

Downward Trends in Surgical Site and Urinary Tract Infections After Cesarean Delivery in a French Surveillance Network, 1997–2003

2008 ◽  
Vol 29 (3) ◽  
pp. 227-233 ◽  
Author(s):  
Agnès Vincent ◽  
Louis Ayzac ◽  
Raphaële Girard ◽  
Emmanuelle Caillat-Vallet ◽  
Catherine Chapuis ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Urinary Tract ◽  
Cesarean Delivery ◽  
National Standards ◽  
Healthcare Associated Infection ◽  
Odds Ratios ◽  
Surveillance Network ◽  
Maternal Risk ◽  
Preventive Practices ◽  
Tract Infections

Objective.To evaluate whether the adjusted rates of surgical site infection (SSI) and urinary tract infection (UTI) after cesarean delivery decrease in maternity units that perform active healthcare-associated infection surveillance.Design.Trend analysis by means of multiple logistic regression.Setting.A total of 80 maternity units participating in the Mater Sud-Est surveillance network.Patients.A total of 37,074 cesarean deliveries were included in the surveillance from January 1, 1997, through December 31, 2003.Methods.We used a logistic regression model to estimate risk-adjusted post–cesarean delivery infection odds ratios. The variables included were the maternity units' annual rate of operative procedures, the level of dispensed neonatal care, the year of delivery, maternal risk factors, and the characteristics of cesarean delivery. The trend of risk-adjusted odds ratios for SSI and UTI during the study period was studied by linear regression.Results.The crude rates of SSI and UTI after cesarean delivery were 1.5% (571 of 37,074 patients) and 1.8% (685 of 37,074 patients), respectively. During the study period, the decrease in SSI and UTI adjusted odds ratios was statistically significant (R = −0.823 [P = .023] and R = −0.906 [P = .005], respectively).Conclusion.Reductions of 48% in the SSI rate and 52% in the UTI rate were observed in the maternity units. These unbiased trends could be related to progress in preventive practices as a result of the increased dissemination of national standards and a collaborative surveillance with benchmarking of rates.

scholarly journals Adverse Childhood Experiences on Reproductive Plans and Adolescent Pregnancy in the Gulf Resilience on Women’s Health Cohort

2020 ◽  
Vol 18 (1) ◽  
pp. 165
Author(s):  
Megan Flaviano ◽  
Emily W. Harville
Keyword(s):  
Logistic Regression ◽  
Educational Attainment ◽  
Women’S Health ◽  
Women's Health ◽  
Adolescent Pregnancy ◽  
Adverse Childhood Experiences ◽  
Odds Ratios ◽  
Childhood Experiences ◽  
Adverse Childhood ◽  
Increased Risk

We investigated if adverse childhood experiences (ACEs) and ACE sub-types were associated with increased odds of planning to have children and adolescent pregnancy. The Gulf Resilience on Women’s Health (GROWH) is a diverse cohort of reproductive-age women living in southeastern Louisiana during the 2010 Deepwater Horizon oil spill. In our sample of 1482 women, we used multinomial logistic regression to model odds ratios of wanting future children and assessed effect measure modification by educational attainment. We also estimated odds ratios of adolescent pregnancy with binomial logistic regression. Exposure to ACEs increased odds of wanting future children across all ACE sub-types. Among women with lower educational attainment, three or more ACEs (overall, childhood, and adolescence) had over two times the odds of wanting future children. History of ACE and the various sub-types, except for emotional abuse, were associated with increased risk of adolescent pregnancy. ACEs may be linked to adolescent pregnancy and reproductive plans, and variations by educational status highlighted social discrepancies and importance of social context in evaluation and intervention.

scholarly journals Risk of anorexia and bulimia nervosa and its associated factors in undergraduate students

2021 ◽  
Vol 34 ◽  
Author(s):  
Gustavo Alfonso DÍAZ MUÑOZ
Keyword(s):  
Physical Activity ◽  
Logistic Regression ◽  
Bulimia Nervosa ◽  
Undergraduate Students ◽  
Associated Factors ◽  
Short Form ◽  
Multivariate Logistic Regression Model ◽  
Daily Consumption ◽  
Related Factors ◽  
Protein Supplements

ABSTRACT Objective To quantify the prevalence and related factors to the risk of anorexia and bulimia nervosa in undergraduate students at a private university in Bogotá, Colombia. Methods A cross-sectional study, which evaluated the frequency of food consumption, physical activity (International Physical Activity Questionnaire, short form), the risk of anorexia and bulimia nervosa (Sick, Control, One, Fat, and Food questionnaire) and demographic variables. The statistical analysis used a multivariate logistic regression model, where the outcome was the yes/no risk of anorexia or bulimia nervosa. Results A total of 1,545 university students participated. The average age was 19.2 years (+/-2.5), 65.7% were women, and 63.9% came from Bogotá. The risk of anorexia and bulimia nervosa was 27.6%. In the logistic regression, the risk was associated with female sex (OR 1.6 CI95% 1.2 to 2.1), daily consumption of cereals (OR 0.7 CI95% 0.6 to 0.9), daily fat consumption (OR 1.5 CI95% 1.1 to 2.1), eat light products (OR 1.8 CI95% 1.1 to 2.9), consume protein supplements (OR 0.4 CI95% 0.2 to 0.8), being in disagreement with physical activity for fun (OR 1.8 CI95% 1.1 to 3.1), and physical activity by appearance (OR 2.2 CI95% 1.6 to 2.9). Conclusions The prevalence of risk to anorexia and bulimia nervosa in the study sample is high. The associated factors were the consumption of cereals, fat, light products, and protein supplements. Physical activity by appearance and disagreement to do exercise by fun were associated with the risk of anorexia and bulimia nervosa. So it is recommended that universities implement awareness and education interventions to address this problem.

scholarly journals Interictal high frequency background activity as a biomarker of epileptogenic tissue

2021 ◽  
Author(s):  
Truman Stovall ◽  
Brian Hunt ◽  
Simon Glynn ◽  
William C Stacey ◽  
Stephen V Gliske
Keyword(s):  
Logistic Regression ◽  
Confidence Interval ◽  
High Frequency ◽  
High Frequency Oscillation ◽  
Epileptogenic Zone ◽  
Odds Ratios ◽  
Seizure Onset ◽  
High Frequency Oscillations ◽  
Seizure Onset Zone ◽  
Background Data

Abstract High Frequency Oscillations are very brief events that are a well-established biomarker of the epileptogenic zone, but are rare and comprise only a tiny fraction of the total recorded EEG. We hypothesize that the interictal high frequency “background” data, which has received little attention but represents the majority of the EEG record, also may contain additional, novel information for identifying the epileptogenic zone. We analyzed intracranial EEG (30–500 Hz frequency range) acquired from 24 patients who underwent resective surgery. We computed 38 quantitative features based on all usable, interictal data (63–307 hours per subject), excluding all detected high frequency oscillations. We assessed association between each feature and the seizure onset zone and resected volume using logistic regression. A pathology score per channel was also created via principle component analysis and logistic regression, using hold-out-one-patient cross validation to avoid in-sample training. Association of the pathology score with the seizure onset zone and resected volume was quantified using an asymmetry measure. Many features were associated with the seizure onset zone: 23/38 features had odds ratios &gt;1.3 or &lt; 0.7 and 17/38 had odds ratios different than zero with high significance (p &lt; 0.001/39, logistic regression with Bonferroni Correction). The pathology score, the rate of high frequency oscillations, and their channel-wise product were each strongly associated with the seizure onset zone (median asymmetry &gt; =0.44, good surgery outcome patients; median asymmetry &gt; =0.40, patients with other outcomes; 95% confidence interval &gt; 0.27 in both cases). The pathology score and the channel-wise product also had higher asymmetry with respect to the seizure onset zone than the high frequency oscillation rate alone (median difference in asymmetry &gt; =0.18, 95% confidence interval &gt;0.05). These results support that the high frequency background data contains useful information for determining the epileptogenic zone, distinct and complementary to information from detected high frequency oscillations. The concordance between the high frequency activity pathology score and the rate of high frequency oscillations appears to be a better biomarker of epileptic tissue than either measure alone.

Establishment of Predictive Model for Related Factors of Systemic Inflammatory Response Syndrome (SIRS) After Percutaneous Nephrolithotomy (PCNL)

2020 ◽  
Author(s):  
Min Ju ◽  
Jin Zheng ◽  
li Ying Pan ◽  
lin Lin Gao
Keyword(s):  
Risk Factors ◽  
Logistic Regression ◽  
Systemic Inflammatory Response Syndrome ◽  
Inflammatory Response ◽  
Percutaneous Nephrolithotomy ◽  
Operative Time ◽  
Univariate Analysis ◽  
Infection Process ◽  
Systemic Inflammatory Response ◽  
Related Factors

Abstract Background:The percutaneous nephrolithotomy (PCNL) is a primary method of stone treatment, but the infection is a very common postoperative complication. The systemic inflammatory response syndrome (SIRS) is a stage of the infection process and a very important early clinical manifestation of sepsis, so identifying the risk factors associated with SIRS after PCNL plays an important role in ensuring patients’ safety and preventing sepsis. Methods:Between September 2016 and September 2017,there were total 352 patients who were diagnosed as renal stone and were treated with PCNL, andincluded in this study at last.Patients were divided into two groups according to whether SIRS occurred or not.The univariate analysis was performed on the related risk factors such as patients' age, gender, number of stone, diabetes et al. Then logistic regression was used for multivariate analysis and established a prediction model.Results:There are 352renal stone patients were treated with PCNL, and 106 patients (30.1%) suffered SIRS after operation.It was found that the operative time, preoperative fever and diabetes could be deemed as risk factors, and the Then logistic regression results indicated that diabetes (OR=2.049, 95%CI 1.008～4.166) and operative time (OR=1.011, 95%CI 1.003～1.019) entered the regression equation.Conclusion: Diabetes and operative time are independent risk factors for SIRS after PCNL, so the probability of SIRS after PCNL can be determined in accordance with these two indicators.

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