| Characteristics | Grade of knowledge | ||||
| Poor n (%) | Good n (%) | Total | P | ||
| 1-Gender (398) |
|
|
| 0.90 | |
| Male | 121 (67.5) | 114 (67.4) | 235 | ||
| Female | 58 (32.4) | 55 (32.5) | 113 | ||
| 2-Age x̄ ± SD | 21.56 ± 2.08 | 21.44 ± 1.81 | 21.50 ± 1.95 | 0.28 | |
| 3-Marital status (346) |
|
|
|
| |
| Single | 160 (89.8) | 160 (95.2) | 320 | 0.62 | |
| Married | 18 (10.1) | 7 (4.1) | 25 | ||
| Divorced | 0 | 1 (0.05) | 1 | ||
| 4-Tracks (347) |
|
|
|
| |
| Science colleges | 41 (23) | 46 (27.2) | 87 | <0.001 | |
| Health colleges | 8 (4.4) | 79 (46.7) | 87 | ||
| Humanitarian colleges | 129 (72.4) | 44 (26) | 173 | ||
| 5-GPA x̄ ± SD | 3.61 ± 0.72 | 3.98 ± 0.71 | 3.79 ± 0.74 | 0.108 | |
| 6-Mothers’ educational level |
|
|
|
| |
| Less than secondary | 45 (30.2) | 37 (24.1) | 82 | 0.009 | |
| Secondary | 43 (28.8) | 33 (21.5) | 76 | ||
| University | 60 (40.2) | 72 (47) | 132 | ||
| Post-graduate | 1 (0.6) | 11 (7.1) | 12 | ||
| 7-Fathers’ educational level |
|
|
| ||
| Less than secondary | 17 (11.5) | 24 (15.1) | 41 | 0.002 | |
| Secondary | 43 (29.2) | 26 (16.4) | 69 | ||
| University | 73 (49.6) | 72 (45.5) | 145 | ||
| Post-graduate | 14 (9.5) | 36 (22.7) | 50 | ||
| 8-Smoking status (345) |
|
|
|
| |
| Yes | 27 (15.2) | 24 (14.2) | 51 | 0.894 | |
| No | 146 (82.4) | 139 (82.7) | 285 | ||
| Ex. smoker | 4 (2.2) | 5 (2.9) | 9 | ||