Associations of potential confounding factors with CRP levels in five new cohort studies.

CRP: C-reactive protein; SD: standard deviation; BMI: body mass index; SEP: Socioeconomic position; n: number
NA: data on childhood SEP not available for Speedwell and the HIMS participants
*Defined as manual occupational social class according to British Registrar General's Classification
†Defined as at least 2 hours per week of moderate of vigorous exercise
$Defined as highest third of the distribution of total energy expenditure derived from the Minnesota Leisure Time Physical Activity
¶Defined as participating in regular swimming or morning exercises
‡Defined as clerical (lowest) employment grade
#Defined as non-sedentary
**Defined as socioeconomic disadvantage based on a score of less than 1,000 on the Australian 1996 index of disadvantage (http://www.facsia.gov.au/research/prp08/PRP_No_08.pdf)
††Defined as two or more episodes of vigorous activity per week