Table 2.
Binary logistic regression of those military operational characteristics associated with common mental disorder (CMD)
| Characteristic | Characteristic total n (%) |
CMD no case n (%) |
CMD case n (%) |
OR (95% CI) | AOR* (95% CI) | AOR† (95% CI) | AOR‡ (95% CI) | AOR§ (95% CI) |
|---|---|---|---|---|---|---|---|---|
| Lower morale | 701 (53.7) | 281 (40.1) | 420 (59.9) | 5.74 (4.48 to 7.36) | 6.02 (4.58 to 7.90) | 5.94 (4.46 to 7.91) | 3.83 (2.93 to 5.00) | 4.02 (2.88 to 5.63) |
| Higher morale | 605 (46.3) | 480 (79.3) | 125 (20.7) | 1 | 1 | 1 | 1 | 1 |
| Lower cohesion | 360 (26.0) | 113 (31.4) | 247 (68.6) | 4.72 (3.64 to 6.12) | 4.58 (3.46 to 6.07) | 4.46 (3.34 to 5.97) | 2.66 (1.97 to 3.58) | 2.75 (1.90 to 3.97) |
| Higher cohesion | 1026 (74.0) | 701 (68.3) | 325 (31.7) | 1 | 1 | 1 | 1 | 1 |
| Lower leadership | 250 (18.0) | 86 (34.4) | 164 (65.6) | 3.40 (2.55 to 4.54) | 2.95 (2.16 to 4.03) | 3.58 (2.58 to 4.97) | 1.76 (1.26 to 2.46) | 1.65 (1.10 to 2.47) |
| Higher Leadership | 1136 (82.0) | 728 (64.1) | 408 (35.9) | 1 | 1 | 1 | 1 | 1 |
| Greater problems on the home front | 429 (33.1) | 197 (45.9) | 232 (54.1) | 2.22 (1.76 to 2.81) | 2.28 (1.76 to 2.95) | 2.17 (1.68 to 2.80) | 2.21 (1.68 to 2.91) | 2.46 (1.78 to 3.38) |
| Fewer problems on the home front | 866 (66.9) | 566 (65.4) | 300 (34.6) | 1 | 1 | 1 | 1 | 1 |
| Planned exercise | 1159 (83.6) | 653 (56.3) | 506 (43.7) | 1.90 (1.40 to 2.59) | 2.26 (1.64 to 3.13) | 2.41 (1.50 to 3.88) | 1.24 (0.86 to 1.79) | 2.50 (1.40 to 4.46) |
| Routine deployment | 228 (16.4) | 162 (71.1) | 66 (28.9) | 1 | 1 | 1 | 1 | 1 |
| Greater exposure to potentially traumatic events | 467 (33.8) | 231 (49.5) | 236 (50.5) | 1.78 (1.42 to 2.23) | 1.60 (1.25 to 2.05) | 1.69 (1.31 to 2.18) | 1.44 (1.11 to 1.88) | 1.17 (0.85 to 1.62) |
| Lower exposure to potentially traumatic events | 915 (66.2) | 581 (63.5) | 334 (36.5) | 1 | 1 | 1 | 1 | 1 |
| No preoperational stress brief | 1200 (87.5) | 692 (57.7) | 508 (42.3) | 1.47 (1.05 to 2.06) | 1.81 (1.26 to 2.61) | 1.42 (0.97 to 2.08) | 1.07 (0.73 to 1.56) | 1.29 (0.82 to 2.02) |
| Received preoperational stress brief | 171 (12.5) | 114 (66.7) | 57 (33.3) | 1 | 1 | 1 | 1 | 1 |
| Land deployments: <5 months | 1017 (78.5) | 579 (56.9) | 438 (43.1) | 1.33 (1.01 to 1.75) | 0.97 (0.71 to 1.33) | 1.42 (1.06 to 1.91) | 1.26 (0.92 to 1.73) | 0.93 (0.63 to 1.37) |
| Land deployments: >5 months | 279 (21.5) | 178 (63.8) | 101 (36.2) | 1 | 1 | 1 | 1 | 1 |
| Place of work: ships >300 personnel | 1004 (72.4) | 570 (56.8) | 434 (43.2) | 1.35 (1.06 to 1.72) | 1.57 (1.21 to 2.04) | 0.95 (0.65 to 1.39) | 0.80 (0.59 to 1.07) | 0.63 (0.39 to 1.00) |
| Place of work: ships <300 personnel | 383 (27.6) | 245 (64.0) | 138 (36.0) | 1 | 1 | 1 | 1 | 1 |
*Adjusted for sociodemographic factors (rank, service, service length and age).
†Adjusted for operational factors (home front problems, exposure to potentially traumatic events, type of deployment, place of work, preoperational stress brief and land deployment).
‡Adjusted for leadership, morale and cohesion.
§Adjusted for all. AOR, adjusted odds ratio.