Tracking and prevalence of cardiovascular disease risk factors across socio-economic classes: A longitudinal substudy of the European Youth Heart Study

Table 4 Odds ratios for specific risk events in the group of low SES compared to the group of high SES. Odds ratios are adjusted for maturity state and gender

	n	OR	95% CI	P^a
Physical Fitness
Being low fit at T₂	328	1.77	1.04–3.01	0.034
Maintaining low PF	81	1.36	0.55–3.36	0.511
Developing low PF	247	1.94	0.95–3.95	0.069
Body Mass Index
Being overweight at T₂	380	1.95	1.07–3.57	0.030
Maintaining overweight	46	2.09	0.60–7.26	0.245
Developing overweight	334	2.35	1.02–5.40	0.045

Low physical fitness was defined according to the lowest sex and age group specific quartile of physical fitness. Overweight was defined according to BMI cut-points proposed by the International Obesity Task Force.
a: P-value for the test of whether odds ratios differs from 1

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