From: Tracking and prevalence of cardiovascular disease risk factors across socio-economic classes: A longitudinal substudy of the European Youth Heart Study
Low SES
High SES
Total sample
n
β
95% CI
Pa
Physical fitness
133
0.45
0.25–0.64
195
0.54
0.41–0.67
328
0.50
0.38–0.61
Body Mass Index
161
0.75
0.61–0.90
219
0.70
0.60–0.80
380
0.73
0.64–0.81
0.60