Table 1.

Demographic characteristics of the total sample

Variable	Number (%)
Total	3186 (100.0)
Gender
Male	1700 (53.4)
Female	1486 (46.6)
Age (years)
13–14	420 (13.2)
15–16	1687 (53.0)
17–18	1079 (33.9)
Grade
7th–9th	1686 (52.9)
10th–12th	1500 (47.1)
Living arrangement
Two biological parents	2836 (89.0)
Only father or mother	149 (4.7)
Others	201 (6.3)
Family economic status
Above average	975 (30.6)
Average	1942 (61.0)
Below average	269 (8.4)
Family relationship
Above average	2501 (78.5)
Average	502 (15.8)
Below average	183 (5.7)
Parental caring
Satisfied with father or mother	545 (17.1)
Satisfied with both of them	2471 (77.6)
Dissatisfied with both of them	170 (5.3)
Academic achievement
Above average	1361 (42.7)
Average	932 (29.3)
Below average	893 (28.0)
Academic pressure
Above average	1344 (42.2)
Average	1376 (43.2)
Below average	466 (14.4)
Relationship with teachers
Good	1552 (48.7)
Average	1408 (44.2)
Poor	226 (7.1)
Relationship with classmates
Good	2220 (69.7)
Average	846 (26.6)
Poor	120 (3.8)
Feel lonely
Less than 1 day/week	1733 (54.4)
1 to 4 days/week	1073 (33.7)
More than 4 days/week	380 (11.9)
Suicide ideation
Never	2589 (81.3)
Occasionally (1–2 times/year)	391 (12.3)
Sometimes (3–6 times/year)	75 (2.4)
Often (over 6 times/year)	131 (4.1)
Suicide attempt
Never	3083 (95.8)
Occasionally (1–2 times/year)	81 (2.5)
Sometimes (3–6 times/year)	14 (0.4)
Often (over 6 times/year)	38 (1.2)
Hurt themselves on purpose
Never	2807 (88.1)
Occasionally (1–2 times/year)	269 (8.4)
Sometimes (3–6 times/year)	61 (1.9)
Often (over 6 times/year)	49 (1.5)
Running away from home
Never	2262 (71.0)
Considered	815 (25.6)
Planned	48 (1.5)
Attempted	61 (1.9)
Habit of sleeping after lunch
Never	308 (9.7)
Occasionally (1–4 times/week)	1598 (50.2)
Often (over 4 times/week)	1280 (40.2)