What are the advantages and disadvantages of mixed method (qualitative and quantitative research)? What are the advantages and disadvantages of using independent group designs over repeated measure designs? What is a confounding variable? What are the effects of the "Triangle Trade"?
with only one person per household selected in the sample. Briefly, a multi-stage probability sampling design was used to select a stratified random sample (n = 200) of Census Collection Districts (CCD), and a random sample of people aged 40–65 years living in these CCD (n = ...
Design: Prospective observational study. Setting: Scotland.rnParticipants: 5191 employed men aged 35 to 64 years and free of coronary heart disease at study enrolment Main outcome measures: Area under receiver operating characteristic (ROC) curves for risk prediction equations including different risk ...
Findings In a cohort study that included 318 372 children with health insurance, neighborhood disadvantage at birth was associated with a higher likelihood of ASD diagnoses, independent of maternal education. Meaning Providing resources for early intervention and family support in communiti...
Prenatal exposure to maternal cigarette smoking and DNA methylation: epigenome-wide association in a discovery sample of adolescents and replication in an independent cohort at birth through 17 years of age. Environ Health Perspect. 2015;123(2):193-199. doi:10.1289/ehp.1408614 PubMed...
Step 1: To address the first hypothesis, loneliness (the dependent variable) was regressed on neighbourhood disadvantage (the independent variable) with adjustment for age and sex, and then with further adjustment for education, occupation, income and distance to CBD using MLwiN software version 28 ...
provided a test of the causal association between gene transcription and CRP levels. There was an average of 39 semi-independent instruments (ciseQTLs in a linkage disequilibrium r2 ≤ 0.25, see “Materials and methods” section) per each gene and the averageF-statistic was 97. Finally, ...
2.3. Measures 2.3.1. Developmentally vulnerable on one or more domains The AEDC is an internationally-validated and reliable Australian child population measure of early childhood development. It provides teacher-reported national data on five key child development domains for all children in their fir...
6-8 Although many studies have linked low SES to elevated risk of premature mortality, understanding the independent contribution of the neighborhood socioeconomic environment remains limited.6,9-11 Most epidemiologic studies have relied on measuring the neighborhood environment at 1 time point, most ...
Exposures Geocoded decedent addresses linked to neighborhood disadvantage as measured by the Area Deprivation Index calculated for the year of death. Main Outcomes and Measures Presence of Alzheimer disease neuropathology. The association between neighborhood disadvantage and Alzheimer disease neuropathology was...