Table 2

Cohort activity exposure (occupational /leisure) at 36, 43, and 53 years, stratified by gender
36 years 43 years 53 years
Men Women Men Women Men Women
% (N) % (N) % (N) % (N) % (N) % (N)
Manual occupation 68.3 (586) 31.7 (272) 36.1 (457) 24.4 (284) 39.1 (564) 28.9 (430)
Non-manual occupation 57.7 (702) 42.3 (513) 63.9 (810) 75.6 (880) 60.9 (877) 71.1 (1058)
p-valuea <0.001 <0.001 <0.001
Lifting§ unlikely 58.9 (773) 76.9 (1001) 61.3 (793) 71.1 (975) 62.6 (858) 71.8 (965)
Lifting somewhat likely 21.3 (279) 14.1 (183) 21.8 (282) 18.6 (255) 21.2 (291) 16.1 (217)
Lifting highly likely 19.8 (260) 9.0 (117) 16.9 (218) 10.4 (142) 16.1 (221) 12.1 (163)
p-valuea <0.001 <0.001 <0.001
Kneeling§ unlikely 61.9 (812) 45.5 (592) 63.3 (819) 60.6 (831) 67.7 (927) 66.3 (891)
Kneeling somewhat likely 22.4 (294) 46.6 (606) 21.7 (280) 31.1 (427) 18.4 (252) 24.5 (330)
Kneeling highly likely 15.7 (206) 7.9 (103) 15.0 (194) 8.3 (114) 13.9 (191) 9.2 (124)
p-valuea <0.001 <0.001 <0.001
Walking§ unlikely 90.8 (1191) 98.2 (1278) 93.0 (1203) 98.2 (1347) 92.1 (1262) 98.1 (1319)
Walking likely 9.2 (9.22) 1.8 (23) 7.0 (90) 1.8 (25) 7.9 (108) 1.9 (26)
p-valuea <0.001 <0.001 <0.001
Climbing§ unlikely 90.0 (1181) 96.0 (1249) 90.9 (1175) 95.6 (1312) 91.1 (1248) 94.7 (1273)
Climbing somewhat likely 6.3 (82) 4.0 (52) 5.5 (71) 4.4 (60) 5.0 (69) 5.3 (72)
Climbing highly likely 3.7 (49) 0 (0) 3.6 (47) 0 (0) 3.9 (53) 0 (0)
p-valuea <0.001 <0.001 <0.001
Sitting§ unlikely 31.2 (409) 22.4 (291) 31.2 (403) 25.5 (350) 30.2 (414) 28.8 (287)
Sitting somewhat likely 26.8 (351) 51.9 (675) 28.0 (363) 36.0 (494) 24.2 (332) 27.0 (375)
Sitting highly likely 42.0 (552) 25.7 (335) 40.8 (527) 38.5 (528) 45.6 (624) 43.4 (583)
p-valuea <0.001 <0.001 0.096
Physical activity
 Inactive 31.2 (405) 41.3 (565) 47.5 (642) 55.0 (784) 48.1 (699) 50.7 (762)
 Less active 26.5 (344) 24.5 (335) 23.5 (318) 23.0 (328) 18.6 (270) 16.1 (242)
 Most active 42.4 (551) 34.3 (469) 29.0 (392) 12.0 (313) 33.3 (484) 33.2 (499)
p-valuea <0.001 <0.001 0.163

ap-values for gender comparison by means of chi square or Fisher’s exact test.

§ Lifting: Regular lifting of weights ≥ 25 kg by hand; Kneeling: Bending, kneeling or squatting; Sitting: Sitting >2 hours per day; Climbing: Climbing ladders or >30 flights of stairs; Walking: Walking >2 miles per day.

Martin et al.

Martin et al. BMC Musculoskeletal Disorders 2013 14:219   doi:10.1186/1471-2474-14-219

Open Data