scholarly journals Evaluation of Proportional Odds and Continuation Ratio Models for Smoker in Indonesia

2020 ◽  
Author(s):  
Rini Warti ◽  
Anang Kurnia ◽  
Kusman Sadik
Keyword(s):  
Proportional Odds ◽  
Continuation Ratio

scholarly journals The state of Spanish /s/ variation in Concepción, Chile: Linguistic and social trends

2020 ◽  
Vol 6 (1) ◽  
pp. 132-153
Author(s):  
Brandon M. A. Rogers
Keyword(s):  
Social Factors ◽  
Central City ◽  
Mixed Effects ◽  
The State ◽  
Mixed Effects Model ◽  
Proportional Odds ◽  
Random Factor ◽  
Social Trends ◽  
Southern Central ◽  
Social Demographics

AbstractThe current study examines /s/ variation in the southern-central city of Concepción, Chile and its relation to a variety of linguistic and social factors. A proportional-odds mixed effects model, with the random factor of “speaker”, was used to treat the categorically coded data on a continuum of acoustical variation ([s] > [h] > ∅). The results presented show that contrary to the previous assertions, heavy sibilant reduction, especially elision, in Concepción, Chile is the rule, rather than the exception, to the extent that it is no longer a marker of certain social demographics as has been reported previously. Furthermore, based on the trends reported, it is likely that this has been the case for several decades. Finally, the overall observed trends are indicative that the rates of /s/ elision will continue to increase across social demographics and different phonetic and phonological contexts in Concepción, Chile.

scholarly journals Prevalence and risk factors for overweight and obesity: a cross-sectional countrywide study in Burkina Faso

BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e032953
Author(s):  
Seydou Kaboré ◽  
Tieba Millogo ◽  
Joseph Kouesyandé Soubeiga ◽  
Hermann Lanou ◽  
Brice Bicaba ◽  
...  
Keyword(s):  
Burkina Faso ◽  
Weight Status ◽  
Fasting Blood Glucose ◽  
Population Based ◽  
Overweight And Obesity ◽  
Blood Cholesterol ◽  
Public Health Issue ◽  
Proportional Odds ◽  
Cross Sectional ◽  
Current Smoking

ObjectiveThe objective of this study was to determine the prevalence and predictors of overweight and obesity in Burkina Faso using a population-based countrywide sample. We hypothesise that there is a significant burden related to overweight/obesity in Burkina Faso.DesignSecondary analysis of a population-based countrywide cross-sectional study.SettingBurkina Faso, all the 13 regions including both rural and urban residential areas.Participants4800 participants of both sexes, aged between 25 and 64 years.Main outcomesOverweight and obesity using body mass index cut-off levels of the WHO.ResultsThe prevalence of overweight and obesity in Burkina Faso were 13.82% (95% CI: 12.25 to 15.55) and 4.84% (95% CI: 3.99 to 5.86), respectively. Among men, the proportional odds of overweight/obesity increase with urban residency (p<0.001), greater age (p<0.002), marital status different from single (p≤0.007) and decrease with current smoking (p=0.009). Among women, the proportional odds of overweight/obesity increase with urban residency (p<0.001), primary educational level (p=0.01), high total blood cholesterol level (p<0.001) and high fasting blood glucose level (p=0.02), and decrease with current smoking (p<0.001).ConclusionOur study showed that nearly one person out of five in the adult population of Burkina has an abnormal weight status with women being more affected than men. Urban residency is a consistent risk factor in both men and women. Alcohol consumption and education were associated with an increased odds in only women. Overnutrition needs to be recognised as an important public health issue in Burkina Faso and nutrition interventions need to be reshaped to account for it.

scholarly journals Infant and young child feeding practices in Ethiopia: analysis of socioeconomic disparities based on nationally representative data

2021 ◽  
Vol 79 (1) ◽  
Author(s):  
Nigatu Regassa Geda ◽  
Cindy Xin Feng ◽  
Bonnie Janzen ◽  
Rein Lepnurm ◽  
Carol J. Henry ◽  
...  
Keyword(s):  
Young Child ◽  
Feeding Practices ◽  
Health Concern ◽  
Proportional Odds ◽  
Child Feeding ◽  
Gainful Employment ◽  
Young Child Feeding ◽  
Child Feeding Practices ◽  
Infant And Young Child ◽  
Unit Increase

Abstract Background Undernutrition among children is a priority area of public health concern in Ethiopia. The purpose of this study was to examine disparities in Infant and Young Child Feeding (IYCF) practices among children 6–23 months. Method Data were drawn from the 2016 Ethiopian Demographic and Health Surveys (EDHS). A total of 3240 children aged 6–23 months were used for the present analysis. The outcome variable was IYCF practice score (ranging 0–7) which was constructed based on the linear and combined effects of four sets of variables: breastfeeding, avoidance of bottle feeding, diet diversity score and minimum feeding frequency. IYCF practice score was further recoded into three categories. Proportional odds regression was used to assess the determinants of IYCF category. Results The proportional odds regression analysis showed that IYCF scores significantly decreased by 5% (Adjusted Odds Ratio (AOR) = 0.95; 95% CI: 0.93–0.97) for every unit increase in the child’s age. Households with fathers of primary and secondary and above level education were 1.37 times (95% CI: 1.14–1.66) and 1.67 times (95% CI: 1.26–2.23) more likely to be in the high IYCF category than in the poor IYCF category. The likelihood of being in the high IYCF practice category decreased for non-working mothers by 30% (AOR = 0.70; 95% CI: 0.59–0.83) compared to those working in gainful employment. The chance of being in the high IYCF practice category decreased by 29% for households with no access to radio (AOR = 0.71; 95% CI: 0.59–0.85). Those with medium and rich/richer wealth category were 1.54 times (95% CI: 1.22–1.94) and 1.40 times (95% CI: 1.11–1.75) more likely to belong to high IYCF practice category than being in poor IYCF category. For every unit increase in health service utilization, the chance of falling in higher IYCF category increases by 1.15 times (95% CI: 1.08–1.23). The chance of falling in higher IYCF practice category decreases for rural residents by 37% (AOR = 0.63; 95% CI: 0.47–0.84) compared to those residing in urban areas. Conclusion For a child, the first two years is the time span during which linear faltering of growth is most prevalent and the period when the process of becoming stunted is almost complete. This study recommends improving access to women for gainful employment, provision of economic support to poor rural women, education and promotion of nutrition messages using most accessible media and boosting the positive role of fathers in child feeding practices.

Constrained and Unconstrained Partial Adjacent Category Logit Models for Ordinal Response Variables

2015 ◽  
Vol 47 (2) ◽  
pp. 169-206 ◽  
Author(s):  
Andrew S. Fullerton ◽  
Jun Xu
Keyword(s):  
General Social Survey ◽  
Estimation Method ◽  
Logit Models ◽  
Proportional Odds ◽  
Social Survey ◽  
Partial Model ◽  
Ordinal Response ◽  
Proportional Odds Assumption ◽  
Using Data ◽  
Response Variables

Adjacent category logit models are ordered regression models that focus on comparisons of adjacent categories. These models are particularly useful for ordinal response variables with categories that are of substantive interest. In this article, we consider unconstrained and constrained versions of the partial adjacent category logit model, which is an extension of the traditional model that relaxes the proportional odds assumption for a subset of independent variables. In the unconstrained partial model, the variables without proportional odds have coefficients that freely vary across cutpoint equations, whereas in the constrained partial model two or more of these variables have coefficients that vary by common factors. We improve upon an earlier formulation of the constrained partial adjacent category model by introducing a new estimation method and conceptual justification for the model. Additionally, we discuss the connections between partial adjacent category models and other models within the adjacent approach, including stereotype logit and multinomial logit. We show that the constrained and unconstrained partial models differ only in terms of the number of dimensions required to describe the effects of variables with nonproportional odds. Finally, we illustrate the partial adjacent category logit models with empirical examples using data from the international social survey program and the general social survey.

Sensory evaluation of dehydrated tomatoes using the proportional odds mixed model

2018 ◽  
Vol 42 (11) ◽  
pp. e13822
Author(s):  
Maíra Blumer Fatoretto ◽  
Idemauro Antonio Rodrigues de Lara ◽  
Ana Carolina Loro ◽  
Marta Helena Fillet Spoto
Keyword(s):  
Sensory Evaluation ◽  
Mixed Model ◽  
Proportional Odds

scholarly journals A proportional odds model of risk behaviors associated with recurrent road traffic crashes among young adults in Kuwait

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Saeed Akhtar ◽  
Eisa Aldhafeeri ◽  
Farah Alshammari ◽  
Hana Jafar ◽  
Haya Malhas ◽  
...  
Keyword(s):  
Road Traffic ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Proportional Odds ◽  
Cross Sectional ◽  
Traffic Crashes ◽  
Period Prevalence ◽  
Road Traffic Crashes ◽  
One Year ◽  
Ordinal Outcome

Abstract Background The aims of this cross-sectional study were to i) assess one-year period prevalence of one, two, three or more road traffic crashes (RTCs) as an ordinal outcome and ii) identify the drivers’ characteristics associated with this ordinal outcome among young adult drivers with propensity to recurrent RTCs in Kuwait. Methods During December 2016, 1465 students, 17 years old or older from 15 colleges of Kuwait University participated in this cross-sectional study. A self-administered questionnaire was used for data collection. One-year period prevalence (95% confidence interval (CI)) of one, two, three or more RTCs was computed. Multivariable proportional odds model was used to identify the drivers’ attributes associated with the ordinal outcome. Results One-year period prevalence (%) of one, two and three or more RTCs respectively was 23.1 (95% CI: 21.2, 25.6), 10.9 (95% CI: 9.4, 12.6), and 4.6 (95% CI: 3.6, 5.9). Participants were significantly (p < 0.05) more likely to be in higher RTCs count category than their current or lower RCTs count, if they habitually violated speed limit (adjusted proportional odds ratio (pORadjusted) = 1.40; 95% Cl: 1.13, 1.75), ran through red lights (pORadjusted = 1.64; 95%CI: 1.30, 2.06), frequently (≥ 3) received multiple (> 3) speeding tickets (pORadjusted = 1.63; 95% CI: 1.12, 2.38), frequently (> 10 times) violated no-parking zone during the past year (pORadjusted = 1.64; 95% CI: 1.06, 2.54) or being a patient with epilepsy (pORadjusted = 4.37; 95% CI: 1.63, 11.70). Conclusion High one-year period prevalence of one, two and three or more RTCs was recorded. Targeted education based on identified drivers’ attributes and stern enforcement of traffic laws may reduce the recurrent RTCs incidence in this and other similar populations in the region.

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