Skip to main content

Advertisement

Table 5 Absolute frequencies, outcome prevalences, exposure prevalences, crude and pooled prevalence ratio (PR) estimates, and relative confounding for the analysis of the original data using mother in a paid job as the outcome, father living with the family as the risk factor and social class as confounder (situation 3 original).

From: Alternatives for logistic regression in cross-sectional studies: an empirical comparison of models that directly estimate the prevalence ratio

First stratum: High social class
  Mother employed No All  
  N Prev. N N Prev. exp. = 15.3%
Father Present 66 79.5% 17 83 PR = 1.46
No 250 54.5% 209 459 M-H weight = 38.28
All 316 58.3% 226 542  
Second stratum: Low social class
  Mother employed No All  
  N Prev. N N Prev. exp. = 24.0%
Father present 112 70.9% 46 158 PR = 1.88
No 189 37.8% 311 500 M-H weight = 45.38
All 301 45.7% 357 658  
Combined strata: High and low social class
  Mother employed   No All Prev. exp. = 20.1%
  N Prev. N N PR (crude) = 1.61
Father present 178 73.9% 63 241 PR (M-H) = 1.69
No 439 45.8% 520 959 Confounding = 4.4%
All 617 51.4% 583 1200 P-value(het) *= 0.01
  1. * P-value for testing heterogeneity of the prevalence ratios across strata.