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Table 1 Characteristics of the study population and distribution according to sector of activity

From: Smoking habits in French farmers: a cross-sectional study

  Total Activity sector
Population Tertiary sector Primary sector  
(n = 5101) (n = 996) (n = 4105) p
Men, n (%) 2995 (59%) 449 (45%) 2546 (62%) <0.0001
Mean age (years) 56.9 ± 9.0 56.4 ± 8.6 57.0 ± 9.0 0.07
Age category, n (%) 0.12
 40–54 years 1946 (38%) 386 (39%) 1560 (38%)  
 55–64 years 1677 (33%) 349 (35%) 1328 (32%)  
 65–74 years 1478 (29%) 261 (26%) 1217 (30%)  
Body Mass Index (kg/m2) 26.6 ± 4.6 25.7 ± 4.4 26.9 ± 4.6 <0.0001
Smoking status, n (%) <0.0001
 Never smoker 3324 (65%) 578 (58%) 2746 (67%)  
 Former smoker 1082 (21%) 269 (27%) 813 (20%)  
 Current smoker 695 (14%) 149 (15%) 546 (13%)  
Mean pack-years 6.2 ± 13.2 7.2 ± 14.3 6.0 ± 12.9 0.02
  1. Data are presented as n (%) or mean ± SD, unless otherwise stated