Fig. 1From: Classification of occupational activity categories using accelerometry: NHANES 2003–2004TAC of men and women by OA category against population-referenced TAC percentiles [21]. TAC total activity counts per day, High OA high occupational activity, Intermediate OA intermediate occupational activity, Low OA low occupational activity. TAC percentiles (25th, 50th and 75th) for men and women 40 years of age determined from NHANES 2003–2006 [21]Back to article page