Table 2. Demographic characteristics of the sample in body weight perception and BMI categorya.
| Total (N,%) | Body weight perception (N,%) | χ2 | p | BMI (N,%) | χ2 | p | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Underweight | Normal weight | Overweight | Underweight | Normal weight | Overweight | ||||||
| All respondents | 1923(19.8) | 5625(57.8) | 2179(22.4) | 479(4.9) | 6254(64.3) | 2994(30.8) | |||||
| Sex | |||||||||||
| Boys | 4843(49.8) | 1119(23.1) | 2641(54.5) | 1083(22.4) | 45.1 | 0.049 | 195(4.0) | 2765(57.1) | 1883(38.9) | 210.6 | 0.007 |
| Girls | 4884(50.2) | 1002(20.5) | 2987(61.1) | 895(18.3) | 205(4.2) | 3448(70.6) | 1231(25.2) | ||||
| Age (years) | |||||||||||
| 7–12 | 4451(45.8) | 1035(23.3) | 2603(58.5) | 813(18.3) | 88.2 | 0.022 | 149(3.4) | 2825(63.5) | 1477(33.2) | 44.3 | 0.048 |
| 13–18 | 5276(54.2) | 950(18.0) | 2932(55.6) | 1394(26.4) | 329(6.2) | 3365(63.8) | 1582(30.0) | ||||
| Residence | |||||||||||
| Urban | 5171(53.2) | 944(18.3) | 3158(61.1) | 1069(20.7) | 43.3 | 0.064 | 184(3.6) | 3108(60.1) | 1879(36.3) | 41.6 | 0.098 |
| Rural | 4556(46.8) | 1088(23.9) | 2543(55.8) | 925(20.3) | 202(4.4) | 2984(65.5) | 1370(30.1) | ||||
| School category | |||||||||||
| Primary school | 3832(39.4) | 919(24.0) | 2230(58.2) | 683(17.8) | 122.3 | 0.027 | 132(3.5) | 2445(63.8) | 1255(32.7) | 43.0 | 0.088 |
| Junior high school | 2979(30.6) | 491(16.5) | 1719(57.7) | 769(25.8) | 160(5.4) | 1826(61.3) | 993(33.3) | ||||
| Senior high school | 2916(30.0) | 560(19.2) | 1546(53.0) | 810(27.8) | 190(6.5) | 1994(68.4) | 732(25.1) | ||||
a Weighted for complex survey was used in the statistical analysis.