Selected demographic characteristics of participants (n=1606)
| Characteristics | Total, n (%) | Male, n (%) | Female, n (%) | P values |
| Age (years)* | ||||
| 18–29 | 517 (32.3) | 261 (32.6) | 256 (32) | |
| 30–39 | 557 (34.8) | 258 (32.3) | 299 (37.4) | |
| 40–49 | 333 (20.8) | 145 (18.1) | 188 (23.5) | |
| 50–59 | 136 (8.5) | 90 (11.3) | 46 (5.8) | |
| 60–69 | 49 (3.1) | 39 (4.9) | 10 (1.3) | |
| 70+ | 8 (0.5) | 7 (0.9) | 1 (0.1) | <0.001† |
| Marital status | ||||
| Single/never married | 595 (37) | 307 (38.2) | 288 (35.9) | |
| Married | 958 (59.7) | 487 (60.6) | 471 (58.7) | <0.001† |
| Separated/divorced/widowed | 53 (3.3) | 10 (1.2) | 43 (5.4) | |
| Nationality | ||||
| Qatari | 487 (30.3) | 190 (23.6) | 297 (37.1) | |
| North Africa | 704 (43.8) | 415 (51.7) | 289 (36) | |
| Levant | 320 (19.9) | 159 (19.7) | 161 (20.1) | |
| Other GCC countries | 33 (2) | 12 (1.5) | 21 (2.6) | |
| Other | 61 (3.8) | 28 (3.4) | 33 (4.2) | <0.001† |
| Level of education‡ | ||||
| Never went to school | 18 (1.1) | 8 (1) | 10 (1.2) | |
| Primary school | 115 (7.2) | 45 (5.6) | 70 (8.7) | |
| High school | 685 (42) | 330 (41.1) | 355 (44.3) | |
| Trade school | 34 (2.1) | 26 (3.2) | 8 (1) | |
| University | 607 (37.8) | 319 (39.7) | 288 (36) | |
| Other | 145 (9) | 75 (9.3) | 70 (8.7) | 0.003† |
| Monthly income in US$§ | ||||
| <274 | 7 (0.6) | 5 (0.8) | 2 (0.3) | |
| 275–2745 | 192 (15.7) | 103 (16.9) | 89 (14.5) | |
| 2746–5491 | 401 (32.7) | 224 (36.7) | 177 (28.8) | |
| 5492–8237 | 292 (23.8) | 140 (23) | 152 (24.7) | |
| 8238–10 983 | 133 (10.9) | 57 (9.3) | 76 (12.4) | |
| 10 984–13 729 | 73 (6) | 26 (4.3) | 47 (7.6) | |
| 13 730–16 476 | 49 (4) | 22 (3.6) | 27 (4.4) | |
| >16 476 | 78 (6.4) | 33 (5.4) | 45 (7.3) | 0.007† |
| Smoking¶ | ||||
| Yes | 334 (20.9) | 293 (36.8) | 41 (5.1) | |
| No | 1263 (79.1) | 504 (63.2) | 759 (94.9) | <0.001† |
| Living area | ||||
| Al Doha | 1251 (77.9) | 626 (77.9) | 625 (77.9) | |
| Al Wakrah | 151 (9.4) | 78 (9.7) | 73 (9.1) | |
| Al Khor | 202 (12.6) | 98 (12.2) | 104 (13) | |
| Al Thakhira | 2 (0.1) | 2 (0.2) | 0 (0) | 0.505 |
*Six participants did not answer this question.
†Significant at α=0.05 level.
‡Two participants did not answer this question.
§Three hundred and eighty-one participants did not answer this question.
¶Nine participants did not answer this question.
GCC, Gulf Cooperation Council.