Categorical variables | Frequency | Percent |
Gender | ||
 Male | 528 | 32.1 |
 Female | 1116 | 67.9 |
Marital status | ||
 Single | 1586 | 96.5 |
 Married | 58 | 3.5 |
College stages | ||
 First stage | 531 | 32.3 |
 Second stage | 327 | 19.9 |
 Third stage | 336 | 20.4 |
 Fourth stage | 199 | 12.1 |
 Fifth stage | 133 | 8.1 |
 Sixth stage | 118 | 7.2 |
Place of living | ||
 Baghdad | 186 | 11.3 |
 Wasit | 285 | 17.3 |
 Karbala | 333 | 20.3 |
 Thi-qar | 111 | 6.8 |
 Nineveh | 2 | 0.1 |
 Qadisiyyah | 60 | 3.6 |
 Babil | 82 | 5.0 |
 Najaf | 425 | 25.9 |
 Muthanna | 19 | 1.2 |
 Maysan | 6 | 0.4 |
 Diyala | 19 | 1.2 |
 Basra | 103 | 6.3 |
 Al Anbar | 6 | 0.4 |
 Saladin | 3 | 0.2 |
 Sulaymaniyah | 2 | 0.1 |
 Erbil | 1 | 0.1 |
 Kirkuk | 1 | 0.1 |
Family history of OCD | ||
 No | 1291 | 78.5 |
 Yes | 353 | 21.5 |
Continuous variables | Mean | Standard deviation |
Age of participants (years) | 20.73 | 1.83 |
Number of sleep hours | 8.11 | 1.85 |