Table 1 Stage of puberty by pain location according to sampling scheme, showing significant trend towards more low back pain and back pain anywhere with more advanced pubertal stage df = 1 for both calculations, chi-square = 42.9 and 17.29, p < 0.0001 for both calculations.
From: Back pain reporting in young girls appears to be puberty-related
3rd grade | Pain location | Puberty stage 1 | Puberty stage 2 | Puberty stage 3 | Puberty stage 4 | Puberty stage 5 | Total (%) |
|---|---|---|---|---|---|---|---|
No pain | 126 | 46 | 1 | 0 | 0 | 173 (68.7%) | |
Low back pain | 3 | 1 | 0 | 1 | 0 | 5 (2.0%) | |
Mid back pain | 30 | 15 | 1 | 1 | 0 | 47 (18.7%) | |
Neck pain | 19 | 5 | 2 | 0 | 0 | 26 (10.3%) | |
Pain in two locations | 0 | 1 | 0 | 0 | 0 | 1 (0.4%) | |
Back pain anywhere | 52 | 22 | 3 | 2 | 0 | 79 (31.4%) | |
Total | 178 | 68 | 4 | 2 | 0 | 252 (100%) | |
9th grade | |||||||
No pain | 1 | 0 | 7 | 36 | 36 | 80 (49.7%) | |
Low back pain | 0 | 0 | 2 | 18 | 15 | 35 (21.7%) | |
Mid back pain | 0 | 0 | 3 | 12 | 14 | 29 (18.0%) | |
Neck pain | 0 | 0 | 0 | 6 | 4 | 10 (6.2%) | |
Pain in two locations | 0 | 0 | 0 | 2 | 5 | 7 (4.3%) | |
Back pain anywhere | 0 | 0 | 5 | 38 | 38 | 81 (50.3%) | |
TOTAL | 1 | 0 | 12 | 74 | 74 | 161 |