Table 1 Characteristics of Children and Adolescents According to Sex in the CHNS (2015)
Characteristics | Total (N = 1,369) | Boys (N = 729) | Girls (N = 640) | P |
|---|---|---|---|---|
BMI, kg/m2 | 17.86 ± 3.31 | 18.08 ± 3.39 | 17.61 ± 3.20 | 0.008 |
Age, years | 10.37 ± 3.12 | 10.38 ± 3.18 | 10.37 ± 3.06 | 0.932 |
Gradea | 0.491 | |||
Elementary school and below | 942 (68.81) | 499 (68.45) | 443 (69.22) | |
Junior high school | 312 (22.79) | 174 (23.87) | 138 (21.56) | |
High school and above | 109 (7.96) | 54 (7.41) | 55 (8.59) | |
Residence | 0.119 | |||
Urban | 465 (33.97) | 234 (32.10) | 231 (36.09) | |
Rural | 904 (66.03) | 495 (67.90) | 409 (63.91) | |
Per capita household income | 0.203 | |||
Low income | 447 (32.65) | 225 (30.86) | 222 (34.69) | |
Middle income | 456 (33.31) | 242 (33.20) | 214 (33.44) | |
High income | 466 (34.04) | 262 (35.94) | 204 (31.87) | |
Father’s education levelb | 0.510 | |||
Elementary school and below | 132 (9.64) | 66 (9.10) | 66 (10.31) | |
Junior high school | 433 (31.63) | 241 (33.10) | 192 (30.00) | |
High school and above | 436 (31.85) | 234 (32.10) | 202 (31.56) | |
Mother’s education levelc | 0.622 | |||
Elementary school and below | 196 (14.32) | 98 (13.44) | 98 (15.31) | |
Junior high school | 466 (34.04) | 251 (34.43) | 215 (33.59) | |
High school and above | 405 (29.58) | 209 (28.67) | 196 (30.63) | |
Physical activityd | 0.126 | |||
No | 830 (60.63) | 427 (58.57) | 403 (62.97) | |
Regular | 526 (38.42) | 293 (40.19) | 233 (36.41) |