Table 1 Demographic information of the study sample
Variable | Subgroups | n (%) |
|---|---|---|
Gender (N = 924) | Males | 351 (38) |
Females | 573 (62) | |
Study levels (N = 927) | 4th | 525 (56.6) |
5th | 402 (43.4) | |
Smoking (N = 919) | Yes | 132 (14.4) |
No | 787 (85.6) | |
University (N = 927) | Public | 621 (67) |
Private | 306 (33) | |
City (N = 927) | Sana’a | 446 (48.1) |
Aden | 143 (15.4) | |
Taiz | 224 (24.2) | |
Ibb | 114 (12.3) | |
Age (N = 823); Mean ± SD* | 23.13 ± 1.42 | |