a significant trendp = 0.02
Occupational physical activity and mortality ILS 2005 In the national cohort (ILS 2005), the analysis adjusted for age, household typology, PCS, economic resources, and area of residence, showed a significant association between mortality and continuous exposure to OPA ( p = 0.02), with significantly higher mortality among men in the third (IRR = 1.42) and in the highest quartile of exposure to OPA (IRR = 1.37), compared to the lowest (Table 2 , Model 1), and a significant trend with increasing exposure ( p = 0.02).