Table 2 Variables related to the mission as well as the demographics and behavioral characteristics
N | N-CC | Prevalence of CC | ||||
|---|---|---|---|---|---|---|
% (95% CI) | OR | 95% CI | p value | |||
Type of the mission | < 0.001 | |||||
Training | 703 | 140 | 19.9 (10.0 - 29.8) | 1 | ||
Military operation | 1390 | 827 | 59.5 (51.8 - 67.2) | 6.17 | 3.36 - 11.32 | |
Duration of the mission (mo) | 0.81 | 0.61 - 1.07 | 0.1313 | |||
Age | 0.2150 | |||||
18 - 24 y. | 1071 | 503 | 47.0 (34.9 - 59.1) | 1 | ||
25 y. and more | 1022 | 464 | 45.4 (34.115 - 56.4) | 1.11 | 0.94 - 1.30 | |
Gender | 0.3667 | |||||
Men | 2062 | 953 | 46.2 (34.8 - 57.6) | 1 | ||
Women | 31 | 14 | 45.2 (29.6 - 60.7) | 0.74 | 0.38 - 1.4 | |
Rank | 0.0329 | |||||
JRs - NCOs | 1610 | 728 | 45.2 (33.9 - 56.6) | 1 | ||
Os - WOs | 483 | 239 | 49.5 (37.7 - 61.3) | 1.22 | 1.02 - 1.47 | |
Favorite time for activities | 0.0097 | |||||
Morning type | 531 | 252 | 47.5 (35.0 - 59.9) | 1 | ||
Intermediate type | 1248 | 585 | 46.9 (35.3 - 58.5) | 0.83 | 0.69 - 1.00 | |
Evening type | 314 | 130 | 41.4 (30.1 - 52.7) | 0.68 | 0.52 - 0.87 | |
Bedtime during the mission | 0.0033 | |||||
Before or at midnight | 1607 | 778 | 48.4 (35.7 - 61.1) | 1 | ||
After midnight | 342 | 138 | 40.4 (30.0 - 50.7) | 0.69 | 0.55 - 0.86 | |
NA (Company 1) | 144 | 51 | 35.4 (27.5 - 43.3) | 0.57 | 0.09 - 3.56 | |
Previous overseas travel | 0.1778 | |||||
No | 435 | 244 | 56.1 (44.7 - 67.5) | 1 | ||
Yes | 1658 | 723 | 43.6 (32.3 - 54.9) | 0.87 | 0.72 - 1.06 | |
Tobacco consumption | 0.0420 | |||||
Nonsmoker | 934 | 451 | 48.3 (36.2 - 60.4) | 1 | ||
Smoker 1-20 cig/d. | 903 | 406 | 45.0 (33.0 - 56.9) | 0.86 | 0.73 - 1.02 | |
Smoker >20 cig/d. | 256 | 110 | 43.0 (32.3 - 53.7) | 0.75 | 0.58- 0.96 | |