11-13 yr. (n = 1291) | 13-15 yr. (n = 1064) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Girls (n = 625) | Boys (n = 666) | Girls (n = 499) | Boys (n = 565) | |||||||||
Location | n (mis) | Mean intensity | 95% CI | n (mis) | Mean intensity | 95% CI | n (mis) | Mean intensity | 95% CI | n (mis) | Mean intensity | 95% CI |
NP | 488 (3) | 3.3 | 3.0, 3.5 | 489 (1) | 3.0 | 2.7, 3.2 | 405 (3) | 3.8 | 3.6, 4.0 | 408 (2) | 3.4 | 3.4, 3.6 |
MBP | 378 (4) | 3.3 | 3.1, 3.6 | 387 (1) | 2.8 | 2.5, 3.0 | 338 (1) | 3.9 | 3.6, 4.2 | 332 (5) | 3.8 | 3.5, 4.1 |
LBP | 300 (4) | 2.9 | 2.6, 3.2 | 271 (1) | 2.5 | 2.2, 2.8 | 289 (5) | 4.1 | 3.8, 4.4 | 252 (7) | 3.6 | 3.3, 3.9 |