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Poisson regression

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https://www.readbyqxmd.com/read/28346271/primary-and-repeat-cesarean-deliveries-a-population-based-study-in-the-united-states-1979-2010
#1
Cande V Ananth, Alexander M Friedman, Katherine M Keyes, Jessica A Lavery, Ava Hamilton, Jason D Wright
BACKGROUND: Despite the temporal increase in cesarean deliveries, the extent to which maternal age, period, and maternal birth cohorts may have contributed to these trends remains unknown. METHODS: We performed an analysis of 123 million singleton deliveries in the US (1979-2010). We estimated rate ratio (RR) with 95% confidence interval (CI) for primary and repeat cesarean deliveries. We examined changes in cesarean rates with weighted Poisson regression models across three time-scales: maternal age, year of delivery, and birth cohort (mother's birth year)...
March 23, 2017: Epidemiology
https://www.readbyqxmd.com/read/28345679/impact-of-climate-conditions-on-hospital-admissions-for-subcategories-of-cardiovascular-diseases
#2
Sanja Bijelović, Nataša Dragić, Milorad Bijelović, Mila Kovačević, Marija Jevtić, Olivera Ninkovic Mrđenovački
BACKGROUND: The aim of this study has been to examine the association between climate conditions (CC) and hospital admissions for the subcategories of cardiovascular diseases (CVD), according to patients' age. MATERIAL AND METHODS: From January 2010 through December 2011, the daily number of hospital admissions for angina pectoris (AP), essential hypertension (EH), acute myocardial infarction (AMI) and ischemic heart diseases (IHD) for adults (19-64 years old) and the elderly (≥ 65 years old), as well as for the CC (N = 728 days) was collected for multivariate Poisson regression analysis, confounding with season and weekends...
March 24, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28345258/locus-of-control-and-frequency-of-physician-visits-results-of-a-population-based-longitudinal-study-in-germany
#3
André Hajek, Hans-Helmut König
OBJECTIVES: To examine the role of internal and external locus of control (LOC) in the frequency of physician visits longitudinally. DESIGN: A nationally representative, longitudinal cohort study of German households. Data were used from the years 2005 and 2010. METHODS: Data were gathered from the German Socio-Economic Panel (GSOEP). The ten internal and external LOC items in the SOEP are based on a scale by Krampen. The number of physician visits in the last 3 months was used as outcome variable...
March 27, 2017: British Journal of Health Psychology
https://www.readbyqxmd.com/read/28343738/short-term-association-between-road-traffic-noise-and-healthcare-demand-generated-by-parkinson-s-disease-in-madrid-spain
#4
Julio Díaz, Pablo Martínez-Martín, Carmen Rodríguez-Blázquez, Blanca Vázquez, Maria João Forjaz, Cristina Ortiz, Rocío Carmona, Cristina Linares
OBJECTIVE: To analyse whether there is a short-term association between road traffic noise in the city of Madrid and Parkinson's disease (PD)-related demand for healthcare. METHODS: Time-series analysis (2008-2009) using variables of analysis linked to emergency and daily PD-related demand for healthcare (ICD-10: G20-G21), namely, PD-hospital admissions (HAs), PD-outpatient visits (OVs) and PD-emergency medical calls in Madrid. The noise pollution measurements used were Leqd, equivalent sound level for the daytime hours (from 8 a...
March 23, 2017: Gaceta Sanitaria
https://www.readbyqxmd.com/read/28340857/reducing-socioeconomic-inequalities-in-copd-care-in-the-hospital-outpatient-setting-a-nationwide-initiative
#5
Sandra S Tøttenborg, Peter Lange, Reimar W Thomsen, Henrik Nielsen, Søren P Johnsen
OBJECTIVE: Socioeconomic differences in quality of care have been suggested to contribute to inequality in clinical prognosis of COPD. We examined socioeconomic differences in the quality of COPD outpatient care and the potential of a systematic quality improvement initiative in reducing potential socioeconomic differences. METHODS: A mandatory national quality improvement initiative has since 2008 monitored the quality of COPD care at all national pulmonary specialized outpatient clinics in Denmark using six evidence-based process performance measures...
April 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28340500/advanced-practice-registered-nurses-and-long-acting-reversible-contraception
#6
Patricia J Kelly, An-Lin Cheng, Kimberly Carlson, Jacki Witt
INTRODUCTION: Advanced practice registered nurses (APRNs) are in an excellent position to address the high rates of unintended pregnancy in the United States by providing long-acting reversible contraceptives (LARCs). These methods are significant in their effectiveness in preventing pregnancy in individual women and in having population-level effects on unintended pregnancy. The aim of this study was to learn more about APRN practices around long-acting reversible contraception and influences on those practices...
March 24, 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28340191/cardiac-health-and-fitness-of-colorado-male-female-firefighters
#7
K Li, T Lipsey, H J Leach, T L Nelson
Background: Cardiovascular disease (CVD) is documented as the leading cause of mortality in on-duty firefighters. Aims: To examine the prevalence of metabolic syndrome (MetS) components, cardiorespiratory fitness levels and the association between them in firefighters in Colorado, USA. Methods: This study included male and female Colorado firefighters. MetS was identified where three or more metabolic abnormalities were present, using Cholesterol Education Program/Adult Treatment Panel III guidelines...
March 16, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28340005/inappropriate-shocks-in-single-chamber-and-subcutaneous-implantable-cardioverter-defibrillators-a-systematic-review-and-meta-analysis
#8
Angelo Auricchio, J Harrison Hudnall, Edward J Schloss, Laurence D Sterns, Takashi Kurita, Albert Meijer, Dedra H Fagan, Tyson Rogers
Aims: Single-chamber (VR-ICD) and subcutaneous (S-ICD) implantable cardioverter-defibrillators are effective to protect patients against sudden death but expose them to higher risk of inappropriate shock (IS). We sought to quantify the annual rate and influencing factors of ISs in VR- and S-ICDs from the literature. Methods and results: PubMed, Embase, and Cochrane Library were searched for full text articles with IS rates. Poisson distribution estimated proportion of patients with ISs; rates were annualized based on follow-up duration...
March 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339670/exploring-the-variability-in-beh%C3%A3-et-s-disease-prevalence-a-meta-analytical-approach
#9
Carla Maldini, Katie Druce, Neil Basu, Michael P LaValley, Alfred Mahr
Background.: Surveys of Behçet's disease (BD) have shown substantial geographic variations in prevalence, but some of these differences may result from methodological inconsistencies. This meta-analysis explored the effect of geographic location and study methodology on the prevalence of BD. Methods.: We systematically searched the literature in electronic databases and by handsearching to identify population-based prevalence surveys of BD. Studies were eligible if they provided an original population-based prevalence estimate for BD with the number of prevalent cases identified in the study area...
February 17, 2017: Rheumatology
https://www.readbyqxmd.com/read/28338949/long-term-exposure-to-transportation-noise-and-air-pollution-in-relation-to-incident-diabetes-in-the-sapaldia-study
#10
Ikenna C Eze, Maria Foraster, Emmanuel Schaffner, Danielle Vienneau, Harris Héritier, Franziska Rudzik, Laurie Thiesse, Reto Pieren, Medea Imboden, Arnold von Eckardstein, Christian Schindler, Mark Brink, Christian Cajochen, Jean-Marc Wunderli, Martin Röösli, Nicole Probst-Hensch
Background: Epidemiological studies have inconsistently linked transportation noise and air pollution (AP) with diabetes risk. Most studies have considered single noise sources and/or AP, but none has investigated their mutually independent contributions to diabetes risk. Methods: We investigated 2631 participants of the Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults (SAPALDIA), without diabetes in 2002 and without change of residence between 2002 and 2011...
March 13, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28338922/the-hidden-epidemic-of-firearm-injury-increasing-firearm-injury-rates-during-2001-2013
#11
Bindu Kalesan, Chandana Adhikarla, Joyce C Pressley, Jeffrey A Fagan, Ziming Xuan, Michael B Siegel, Sandro Galea
Investigating firearm injury trends over the past decade, we examined temporal trends overall and according to race/ethnicity and intent in fatal and nonfatal firearm injuries (FFIs and NFIs) in United States during 2001-2013. Counts of FFIs and estimated counts of NFIs were obtained from the Centers for Disease Control and Prevention's Web-based Injury Statistics Query and Reporting System. Poisson regression was used to analyze overall and subgroup temporal trends and to estimate annual change per 100,000 persons (change)...
March 6, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28338905/the-reverse-j-shaped-association-between-serum-total-25-hydroxyvitamin-d-concentration-and-all-cause-mortality-the-impact-of-assay-standardization
#12
Ramón A Durazo-Arvizu, Bess Dawson-Hughes, Holly Kramer, Guichan Cao, Joyce Merkel, Paul M Coates, Christopher T Sempos
We evaluated the impact of standardizing the originally measured serum total 25-hydroxyvitamin D (25(OH)D) values from Third National Health and Nutrition Examination Survey (NHANES III, 1988-1994) on the association between 25(OH)D and rate of all-cause mortality. Values were standardized to the gold-standard laboratory method. Follow-up from 1990-2006 consisted of 15,099 participants aged at least 20 years at baseline, among whom there were 3,784 deaths. Relative risk of death was adjusted for age, sex, race/ethnicity, and season using Poisson regression...
March 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28338723/non-specific-effects-of-bcg-vaccination-on-morbidity-among-children-in-greenland-a-population-based-cohort-study
#13
S Haahr, S W Michelsen, M Andersson, K Bjorn-Mortensen, B Soborg, J Wohlfahrt, M Melbye, A Koch
Background: The potential non-specific effects of BCG (Bacillus Calmette-Guérin) vaccination, with reported reduction of infectious disease morbidity among vaccinated children, in addition to the protective effect against tuberculosis (TB), are highly debated. In Greenland, BCG vaccination was introduced in 1955, but temporarily discontinued from 1991 to 1996 due to nationwide policy changes. Using the transient vaccination stop, we aimed to investigate possible non-specific effects of BCG vaccination by measuring nation-wide hospitalization rates due to infectious diseases other than TB among vaccinated and unvaccinated children...
October 20, 2016: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28338707/sustained-10-year-gain-in-adult-life-expectancy-following-antiretroviral-therapy-roll-out-in-rural-malawi-july-2005-to-june-2014
#14
Alison J Price, Judith Glynn, Menard Chihana, Ndoliwe Kayuni, Sian Floyd, Emma Slaymaker, Georges Reniers, Basia Zaba, Estelle McLean, Fredrick Kalobekamo, Olivier Koole, Moffat Nyirenda, Amelia C Crampin
Background: Improved life expectancy in high HIV prevalence populations has been observed since antiretroviral therapy (ART) scale-up. However, it is unclear if the benefits are sustained, and the mortality among HIV-positive individuals not (yet) on ART is not well described. We assessed temporal change in mortality over 9 years in rural Malawi. Methods: Within a demographic surveillance site in northern rural Malawi, we combined demographic, HIV and ART uptake data...
October 14, 2016: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28338650/risk-factors-associated-to-hospital-mortality-in-patients-with-acute-kidney-injury-on-hemodialysis
#15
Mariela Alejandra Linares-Linares, Jorge Arturo Figueroa-Tarrillo, Renato Cerna Viacava, Nilton Yhuri Carreazo, Renzo P Valdivia-Vega
INTRODUCTION: The worldwide incidence of acute kidney injury is 18% and the overall hospital mortality can rise above 50%. In Peru, there are few series about mortality of acute kidney injury in hemodialysis patients. OBJECTIVES: To identify risk factors associated to hospital mortality of acute kidney injury in hemodialysis patients. METHODS: This is a retrospective cohort of patients with acute kidney injury in hemodialysis of Hospital Nacional Edgardo Rebagliati Martins gathered between January 2013 and December 2015...
March 6, 2017: Medwave
https://www.readbyqxmd.com/read/28338430/trends-of-second-primary-malignancy-in-patients-with-thyroid-cancer-a-population-based-cohort-study-in-israel
#16
Elena Izkhakov, Micha Barchana, Irena Liphshiz, Barbara Silverman, Naftali Stern, Lital Keinan-Boker
BACKGROUND: Thyroid cancer (TC) is the most common endocrine malignancy. TC patients have a good prognosis and a low disease-related mortality rate. Since the patients are often young, they may be at a higher risk for a second primary malignancy (SPM). We sought to determine the incidence, risk and types of SPM between 1980-2011, and to assess SPM trends over time among Israeli TC patients. METHODS: Data were derived from the Israel National Cancer Registry. Primary TC patients diagnosed during 1980-2009 were followed-up for SPM incidence until December 31, 2011...
March 24, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28338215/delirium-during-postacute-nursing-home-admission-and-risk-for-adverse-outcomes
#17
Cyrus M Kosar, Kali S Thomas, Sharon K Inouye, Vincent Mor
OBJECTIVES: To identify the rate of delirium present during admission to postacute care (PAC) in the nursing home setting and to determine whether patients with delirium had higher risk for adverse outcomes. DESIGN: Retrospective cohort study. SETTING: US Medicare- and Medicaid-certified nursing homes, 2011 to 2014. PARTICIPANTS: Individuals admitted to all US nursing homes for PAC, aged ≥65 years, and without prior history of nursing home residence (n = 5,588,702)...
March 24, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28337585/background-gamma-radiation-and-childhood-cancer-in-germany-an-ecological-study
#18
Claudia Spix, Bernd Grosche, Martin Bleher, Peter Kaatsch, Peter Scholz-Kreisel, Maria Blettner
The relationship of low-dose background gamma radiation and childhood leukaemia was investigated in a number of studies. Results from these studies are inconclusive. Therefore, in the present study 25 years of German childhood cancer data were analyzed using interpolated background annual gamma dose rate per community in an ecological study. The main question was leukaemia; as exploratory questions we investigate central nervous system (CNS) tumours, thyroid carcinomas and diagnoses less likely to be related to radiation...
March 23, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28337523/hip-fracture-incidence-and-social-deprivation-results-from-a-french-ecological-study
#19
M -P Petit, J Bryère, M Maravic, F Pallaro, C Marcelli
The association between socioeconomic status (SES) and hip fracture (HF) incidence was analyzed in France in 2008. In men and women, a decrease in HF incidence was observed as the social deprivation index increased. This result may be partly due to the protective effect of increasing body weight against HF. INTRODUCTION: Regional variations in hip fracture (HF) incidence exist worldwide. Reasons for these variations remain unknown. As regional variations have also been observed for socioeconomic status, we analyzed the association between socioeconomic deprivation (SED) and HF incidence in France in 2008...
March 23, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28336268/malaria-incidence-during-early-childhood-in-rural-burkina-faso-analysis-of-a-birth-cohort-protected-with-insecticide-treated-mosquito-nets
#20
Sabrina Wehner, Gabriele Stieglbauer, Corneille Traoré, Ali Sie, Heiko Becher, Olaf Müller
BACKGROUND: Even in the high transmission areas of sub-Saharan Africa (SSA), the incidence of falciparum malaria varies greatly depending on factors such as age, rainfall pattern, distance to breeding places, quality of houses, and existing vector control measures. Insecticide-treated mosquito nets (ITN) have now become the vector control standard in nearly all of SSA. This study aims to describe and analyse the incidence of malaria in a cohort of young children protected with ITN in rural West Africa...
March 20, 2017: Acta Tropica
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