Table 2.
Association of demographic and driving-related variables with consumption of narcotics and alcohol less than two hours before driving among motorcyclist.
| Variables | Narcotics or alcohol consumption less than two hours before driving |
p-value | OR (%95 CI) | ||
|---|---|---|---|---|---|
| No(n,%) | Yes(n, %) | ||||
| Age (years) | <1 | 28 (48.8) | 5 (15.2) | 0.789 | 0.71 (0.19–2.64) |
| 18–24 | 139 (82.7) | 29 (17.3) | 0.83 (0.31–2.22) | ||
| 25–34 | 129 (87.2) | 19 (12.8) | 0.59 (0.21–1.63) | ||
| 35–44 | 30 (85.7) | 5 (14.3) | 0.67 (0.18–2.45) | ||
| >45 | 24 (80.0) | 6 (20.0) | 1 | ||
| Marital status | Single | 205 (83.3) | 41 (16.7) | 0.411 | 1.26 (0.72–2.19) |
| Married | 145 (86.3) | 23 (13.7) | 1 | ||
| Education | Under diploma | 167 (81.9) | 37 (18.1) | 0.320 | 1.38 (0.63–3.03) |
| High school diploma | 127 (87.6) | 18 (12.4) | 0.88 (0.37–2.08) | ||
| University | 56 (86.2) | 9 (13.8) | 1 | ||
| Living location | Shiraz | 322 (85.2) | 56 (14.8) | 0.240 | 1 |
| Other | 28 (77.8) | 8 (22.2) | 0.61 (0.26–1.40) | ||
| Salary (×10,000 Rls) | ≤500 | 255 (84.7) | 46 (15.3) | 0.871 | 0.95 (0.53–1.72) |
| >500 | 95 (84.1) | 18 (15.9) | 1 | ||
| Usage times (per week) | ≤3 | 120 (91.6) | 11 (8.4) | 0.007 | 1 |
| >3 | 230 (81.3) | 53 (18.7) | 1.90 (1.30–2.78) | ||
| Type of motor | <125 cc | 329 (85.2) | 57 (14.8) | 0.148 | 1 |
| >125 cc | 21 (75.0) | 7 (25.0) | 1.92 (0.78–4.73) | ||
| Using mobile phone during driving | No | 196 (92.5) | 16 (7.5) | <0.001 | 1 |
| Yes | 154 (76.2) | 48 (23.8) | 3.82 (2.09–6.98) | ||
| Maneuvering while driving | No | 303 (89.1) | 37 (10.9) | <0.001 | 1 |
| Yes | 47 (63.5) | 27 (36.5) | 4.70 (2.62–8.43) | ||
| Speeding over the limit | No | 190 (91.8) | 17 (8.2) | <0.001 | 1 |
| Yes | 160 (77.3) | 47 (22.7) | 3.28 (1.81–5.94) | ||
| Usage reason | Non-recreational | 306 (86.7) | 47 (13.3) | 0.004 | 1 |
| Recreational | 44 (72.1) | 17 (27.9) | 2.51 (1.33–4.76) | ||
| Valid driver license | No | 232 (81.4) | 53 (18.6) | 0.008 | 2.45 (1.23–4.87) |
| Yes | 118 (91.5) | 11 (8.5) | 1 | ||
| RTA in past year | No | 218 (88.3) | 29 (11.7) | 0.011 | 1 |
| Yes | 132 (79.0) | 35 (21.0) | 1.99 (1.16–3.41) | ||
| Driving with technical defect | No | 212 (90.2) | 23 (9.8) | <0.001 | 1 |
| Yes | 138 (77.1) | 41 (22.9) | 2.74 (1.57–4.76) | ||
| Wearing safety helmet | No | 225 (81.2) | 52 (18.8) | 0.008 | 2.41 (1.24–4.68) |
| Yes | 125 (91.2) | 12 (8.8) | 1 | ||
Abbreviations in alphabetic order: OR = odds ratio; Rls = Iranian Rials; RTA = road traffic accident.