Background
Methods
Outcome measures
Ethical approval
Statistical analysis
Results
Study sample
Prevalence of smoking
Never smokers prevalence % (95% CI) | Past smokers prevalence % (95% CI) | Current smokers prevalence % (95% CI) | *Adjusted OR (95% CI) Wald, significance | |
---|---|---|---|---|
Service type
| Wald 6.7, df = 1, p = 0.01 | |||
Special Forces | 48.6 (42.52-54.78) | 27.8 (22.3-33.3) | 23.6 (18.8-28.8) | 1.85 (1.16-2.94)** |
Regular Forces | 64.6 (59.93-69.20) | 21.1 (17.2-25.1) | 14.3 (10.9-17.7) | 1.0 |
Age (years)
| Wald 0.84, df = 2, p = 0.66 | |||
18-24 years | 64.1 (57.4-70.9) | 18.2 (12.8-23.6) | 17.7 (12.3-23.0) | 1.0 |
25-34 | 55.3 (50.6-60.1) | 26.2 (22.0-30.5) | 18.4 (14.7-22.2) | 1.17 (0.69-1.98) |
≥35 | 62.0 (48.1-75.9) | 24.0 (11.7-36.3) | 14.0 (4.0-24.0) | 0.86 (0.30-2.47) |
Marital Status
| Wald 0.41,df = 1, p = 0.52 | |||
Never married | 61.3 (56.0-66.5) | 19.8 (15.5-24.1) | 18.9 (14.7-23.2) | 1.0 |
Married/divorced | 55.6 (50.3-60.9) | 27.5 (22.7-32.3) | 16.9 (12.9-20.9) | 0.85 (0.51-1.40) |
Educational Status
| Wald 4.02,df = 2, p = 0.13 | |||
Less than GCE O’Level | 51.2 (44.9-57.6) | 29.1 (23.4-34.8) | 19.7 (14.7-24.7) | 1.0 |
GCE O Level | 63.3 (57.7-68.9) | 21.5 (16.7-26.2) | 15.2 (11.1-19.4) | 0.85(0.53-1.36) |
GCE A Level or higher | 60.9 (52.6-69.1) | 18.8 (12.2-25.5) | 20.3 (13.5-27.1) | 1.51(0.84-2.70) |
Rank (Current)
| Wald 2.78,df = 2, p = 0.25 | |||
Commissioned Officer | 72.7 (56.7-88.8) | 15.2 (2.2-28.1) | 12.1 (0.37-23.9) | 0.45 (0.14-1.38) |
Non-commissioned Officer | 47.1 (37.4-56.9) | 30.8 (21.8-39.8) | 22.1 (14.0-30.2) | 1.3 (0.68-2.5) |
Other ranks | 59.7 (55.6-63.9) | 22.9 (19.3-26.4) | 17.4 (14.2-20.6) | 1.0 |
Number of cigarettes smoked according to demographic characteristics
Association between combat exposure and smoking
Combat exposure | Unadjusted OR Wald, significance | **Adjusted OR Wald, significance |
---|---|---|
Discharged weapon in direct combat | 1.86 (1.24-2.80)* | 1.58 (0.95-2.64) |
Wald 9.07, p = 0.003 | Wald 3.16, p = 0.08 | |
Thought might be killed | 1.32 (0.89-1.96) | 1.24 (0.82-1.86) |
Wald 1.84, p = 0.18 | Wald 1.05, p = 0.31 | |
Seeing dead or wounded | 1.97 (1.22-3.20)* | 1.79 (1.08-2.9)* |
Wald 7.66, p = 0.006 | Wald 5.13, p = 0.02 | |
Handled bodies | 2.60 (1.72-3.91)* | 2.47 (1.6-3.81)* |
Wald 20.99, p < 0.001 | Wald 16.76, p < 0.001 | |
Aided wounded | 1.56 (1.04-2.32)* | 1.37 (0.90-2.10) |
Wald 4.72, p = 0.03 | Wald 2.13, p = 0.14 | |
Came under small arm fire | 2.12 (1.42-3.16)* | 2.01(1.28-3.15)* |
Wald 13.62, p < 0.001 | Wald 9.19, p = 0.002 | |
Came under mortar, missile, artillery fire | 2.0 (1.33-2.98)* | 2.02 (1.29-3.17)* |
Wald 11.37, p = 0.001 | Wald 9.35, p = 0.002 | |
Experienced landmine strikes | 1.83 (0.75-4.5) | 1.75 (0.70-4.36) |
Wald 1.76, p = 0.19 | Wald 1.43, p = 0.23 | |
Experienced hostility from civilians | 0.91 (0.26-3.22) | 0.85 (0.24-3.03) |
Wald 0.02, p = 0.89 | Wald 0.06, p = 0.80 | |
Involved in combat with enemy vessels | 1.83 (1.22-2.74)* | 1.52 (0.94-2.47) |
Wald 8.54, p = 0.003 | Wald 2.91, p = 0.88 |