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. 2020 Jun 1;10:8874. doi: 10.1038/s41598-020-65813-4

Table 1.

Demographic and personal characteristics of the college students participated in the study.

Variables Number Percent Variables Number Percent
Gender The average grade of the previous semester
   Male 493 39.2    A (19–20) 35 2.8
   Female 765 60.8    B (17–19) 439 34.9
Age group (yr)    C (15–17) 614 48.8
   18–21 552 43.9    D (<15) 170 13.5
   22–25 550 43.7 Interested in the discipline
   26–29 112 8.9    Yes 1030 81.9
   +30 44 3.5    No 228 18.1
Birth order Optimistic about future
   First 445 35.4    Yes 998 79.3
   Second 396 31.5    No 260 20.7
   Third 228 18.1 Having a boyfriend/girlfriend
   Forth 189 15.0    Yes 650 51.7
Marital status    No 608 48.3
   Single/divorced 1094 87.0 Experiencing a break-up
   Married 164 13.0    Yes 419 33.3
Drug abuse (opium/Psychedelic)    No 839 66.7
   Yes 123 9.8 Having sexual intercourse
   No 1135 90.2    None 1065 84.7
Residence    Heterosexual 94 7.5
   Dormitory 888 70.6    Homosexual 99 7.9
   Parents' house 370 29.4 City
Father's educational level    Hometown (Hamadan) 381 30.3
   Diploma 592 47.1    Surrounding towns 396 31.5
   BSc 435 34.6    Towns of other provinces 481 38.2
   MSc 166 13.2 Suicide thought lifetime
   MD 65 5.2    Yes 166 13.2
Mother's educational level    No 1092 86.8
   Diploma 804 63.9 Suicide attempt lifetime
   BSc 313 24.9    Yes 77 6.1
   MSc 108 8.6    No 1181 93.9
   MD 33 2.6 Using social media
Student's education level    Yes 1106 87.9
   BSc 599 47.6    No 152 12.1
   MSc 96 7.6 GHQ28
   MD 519 41.3    Has not psychiatric distress 741 58.9
   PhD 44 3.5    Has psychiatric distress 517 41.1