Table 1 Demographical characteristics of Chinese adolescents: Survey on child and adolescent health development in China (Year 2014–2015) (N = 1364)
Characteristics | Total | left-behind adolescents | migrant adolescents | rural local adolescents | Urban local adolescents |
|---|---|---|---|---|---|
Population (N, %) | 1364 (100.00) | 432 (31.70) | 421 (30.90) | 160 (11.70) | 351 (25.70) |
Age (years, M, SD) | 13.41 (0.84) | 14.08 (0.71) | 12.99 (0.69) | 13.89 (0.79) | 12.87 (0.35) |
Gender (N, %) a | |||||
Girls | 585 (43.70) | 179 (41.44) | 157 (37.29) | 68 (42.50) | 181 (51.57) |
Boys | 755 (56.30) | 248 (57.41) | 256 (60.81) | 86 (53.75) | 165 (47.00) |
Family economic status (M, SD) | 3.61(.079) | 3.37 (0.67) | 3.66 (0.75) | 3.24 (0.79) | 3.99 (0.78) |
Body mass index (M, SD) | 20.05 (3.94) | 19.21 (3.31) | 20.71 (4.13) | 19.06 (3.32) | 20.65 (3.90) |
Lifestyle behaviors (not meeting guidelines) (n, %) | |||||
FE (< 7 times/week; N = 1296) | 617 (45.23) | 191 (44.21) | 239 (56.77) | 61 (38.13) | 126 (35.90) |
VE (< 21 times/week; N = 1264) | 1022 (74.93) | 329 (76.16) | 316 (75.06) | 115 (71.88) | 262 (74.64) |
BD (≥1 glasses/week; N = 1319) | 741 (54.33) | 271 (62.73) | 237 (56.29) | 92 (57.50) | 141 (40.17) |
MVPA (< 7 days/week; N = 1311) | 1144 (83.80) | 389 (90.05) | 347 (82.42) | 141 (88.13) | 267 (76.07) |
STD (> 2 h/day; N = 1303) | 263 (19.28) | 109 (25.23) | 90 (21.38) | 25 (15.63) | 39 (11.11) |
STE (> 2 h/per day; N = 1305) | 628 (46.04) | 205 (47.45) | 224 (53.21) | 72 (45.00) | 127 (36.18) |
SDD (< 8 h or > 10 h per day; N = 1315) | 506 (37.10) | 191 (44.21) | 114 (27.08) | 78 (48.75) | 123 (35.04) |
SDE (< 8 h or > 10 h per day; N = 1326) | 474 (34.75) | 151 (34.95) | 163 (38.72) | 46 (28.75) | 114 (32.48) |
SM (≥1time/week; N = 1305) | 41 (3.00) | 17 (3.94) | 13 (3.09) | 8 (5.00) | 3 (0.85) |
AD (≥1 times/week; N = 1314) | 302 (22.14) | 95 (21.99) | 84 (19.95) | 32 (20.00) | 91 (25.93) |