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Ordinal Logistic Regression Analysis (ordinal + logistic_regression_analysis)
Selected AbstractsThe effect of lack of insurance, poverty and paediatrician supply on immunization rates among children 19,35 months of age in the United StatesJOURNAL OF EVALUATION IN CLINICAL PRACTICE, Issue 2 2008James L. Becton Jr MD Rational, aims and objectives, Previous studies found that the increasing number of paediatricians in the United States was associated with improved childhood immunization coverage, while the increasing poverty level and the lack of health insurance reduced access to health care. We evaluated whether changes in the number of paediatricians, poverty level and health insurance affected national childhood immunization coverage in the state levels of the United States. Methods, Data were collected primarily from the US National Immunization Surveys, series 4:3:1:3:3 from years 1995 and 2003. Ordinal logistic regression analysis was used to analyse the relationships among variables. Results, Over 8 years studied, immunization coverage increased for children aged 19,35 months from 52.3% to 79.8% in the 50 states. The average number of paediatricians per 1000 births increased 28.7% while the percentage of children without health insurance declined 15.6%, and the percentage of children who lived in poverty level declined 17.3%. In 1995, the states with higher immunization coverage were associated with higher numbers of paediatricians [odds ratio (OR), 32.73; 95% confidence interval (CI), 5.96,179.77]. In 2003, the higher numbers of paediatricians still played a role in the increased immunization coverage (OR, 4.69; 95% CI, 1.01,21.78); however, the higher rate of uninsured children in 2003 had an even greater effect upon immunization coverage. Compared with states with lower rates of uninsured children, states with intermediate and higher rates of uninsured children had sixfold (OR, 0.16; 95% CI, 0.03,0.81) and 16-fold (OR, 0.06; 95% CI, 0.01,0.40) decreased childhood immunization coverage, respectively. Conclusion, Between 1995 and 2003 in the United States, the lack of health insurance became more prominent than the supply of paediatricians in affecting immunization coverage for children aged 19,35 months. Future improvements in insurance coverage for children will likely lead to greater immunization coverage. [source] Alveolar bone loss associated with glucose tolerance in Japanese menDIABETIC MEDICINE, Issue 9 2003T. Marugame Abstract Aims Type 2 diabetes is known to affect alveolar bone loss (ABL). The purpose of this study was to examine whether impaired glucose tolerance (IGT) is associated with ABL, as is diabetes. Methods A case,control study was performed with 664 Japanese men aged 46,57 years. Panoramic radiographs revealed 513 severe ABL cases, 22 moderate ABL cases, and 129 controls with good alveolar bone. Diabetes status was classified into normal glucose tolerance (NGT), impaired fasting glucose (IFG), IGT, and newly diagnosed diabetes according to the fasting plasma glucose and 75-g oral glucose tolerance test (OGTT). Diabetes under treatment was excluded. Odds ratios (ORs) and 95% confidence intervals (CIs) were obtained from ordinal logistic regression analysis. Statistical adjustment was made for total cholesterol, HDL-cholesterol, triglyceride, rank in the Self Defence Forces (SDF), cigarette-years, alcohol use, body mass index, previous 10 years' brushing habits and instrument use other than toothbrush, and history of periodontal treatment. Results A significant, approximately three-fold increase in the crude OR (crude OR = 3.28; 95% CI = 1.16,9.27) and non-significant 2.6-fold increase in the adjusted OR (adjusted OR = 2.55; 95% CI = 0.86, 7.54) of ABL was observed among men with newly diagnosed Type 2 diabetes compared with the reference group (NGT combined with IFG). However, there was no association between IGT and ABL (adjusted OR = 0.99; 95% CI = 0.59,1.64). Conclusions Type 2 diabetes, but not IGT, was positively associated with ABL. Preventive maintenance against periodontitis is important in middle-aged men with diabetes. [source] Effect of Delivery Method and Timing of Breastfeeding Initiation on Breastfeeding Outcomes in TaiwanBIRTH, Issue 2 2007Li-Yin Chien RN ABSTRACT: Background: Few studies have examined the independent effect of delivery method and timing of breastfeeding initiation on the prevalence of breastfeeding. The objectives of this study were to examine the effect of method of delivery and timing of breastfeeding initiation on the prevalence of breastfeeding at 1 and 3 months after delivery using a national sample from Taiwan. Methods: The study population of 2,064 women who gave birth to infants without congenital anomalies at hospitals in Taiwan from June through October 2003, inclusively, participated in a postal questionnaire survey. Results: Multivariate ordinal logistic regression analysis showed that women with cesarean delivery had a lower odds of breastfeeding at 1 and 3 months after delivery. Women with assisted vaginal delivery had lower odds of breastfeeding at 3 months after delivery compared with women with unassisted vaginal delivery. Initiation of breastfeeding within 30 minutes of delivery was associated with higher odds of breastfeeding at 1 and 3 months after delivery. Women who did not initiate breastfeeding during hospital stay but breastfed at 1 month after delivery had lower odds of breastfeeding at 3 months after delivery. Conclusions: The findings suggest the importance of conservative use of operative obstetrical intervention due to its negative impact on breastfeeding. Health professionals need to support mothers who have experienced cesarean and assisted vaginal delivery to increase their breastfeeding. Hospital staff should improve practice with respect to early initiation of breastfeeding. (BIRTH 34:2 June 2007) [source] Overweight and obesity in Norwegian children: prevalence and socio-demographic risk factorsACTA PAEDIATRICA, Issue 6 2010Pétur B Júlíusson Abstract Aim:, The aim of this study was to estimate the prevalence of childhood overweight and obesity and to identify socio-demographic risk factors in Norwegian children. Methods:, The body mass index of 6386 children aged 2,19 years was compared with the International Obesity Task Force (IOTF) cut-off values to estimate the prevalence of overweight including obesity (OWOB) and obesity (OB). The effect of socio-demographic factors on this prevalence was analysed using multiple ordinal logistic regression analysis in a subsample of 3793 children. Results:, The overall prevalence of OWOB was 13.8% (13.2% in boys and 14.5% in girls, p = 0.146), but the prevalence was higher in primary school children aged 6,11 years (17%, p < 0.001). The risk of being OWOB or OB increased in children with fever siblings (p = 0.003) and with lower parental educational level (p = 0.001). There was no association with parental employment status, single-parent families or origin. Conclusion:, The prevalence of OWOB and OB in Norwegian primary school children is of concern. Socio-demographic factors have pronounced effects on the current prevalence of overweight and obesity in a cohort of Norwegian children. This knowledge could help to work out strategies to reduce the burden of overweight and obesity in children. [source] | ||||||||||