Table 1 Participant characteristics and comparisons among pain groups
|  | No Pain (n = 484) | Single Site Pain (n = 157) | Multi-Site Pain (n = 274) | Main Effect | NPvSSP | NPvMSP | SSPvMSP |
|---|---|---|---|---|---|---|---|
Sex, N (%) | Girls: 302 (62.8%) | Girls: 111 (70.3%) | Girls: 216 (78.5%) | p < 0.001 | ns | ns | ns |
Boys: 179 (37.2%) | Boys: 47 (29.7%) | Boys: 59 (21.5%) | |||||
Age, (years) | 14.6 ± 2.0 (14.5–14.8) | 15.0 ± 1.9 (14.7–15.3) | 14.9 ± 1.9 (14.7–15.2) | p = 0.050 | na | na | na |
Height (m) | 1.65 ± 0.14 (1.63–1.66) | 1.66 ± 0.11 (1.64–1.67) | 1.65 ± 0.12 (1.64–1.66) | p = 0.686 | na | na | na |
Weight (kg) | 61.2 ± 18.3 (59.6–62.9) | 62.0 ± 16.0 (59.5–64.5) | 62.1 ± 15.7 (60.2–64.0) | p = 0.783 | na | na | na |
BMI (kg/m2) | 22.5 ± 5.6 (21.9–23.0) | 22.7 ± 5.8 (21.8–23.7) | 22.8 ± 5.2 (22.2–23.4) | p = 0.702 | na | na | na |