Table 2

The bivariate associations between pubertal stage and a) back pain anywhere b) low back pain, c) mid back pain, and d) neck pain reported as odds ratios and 95% confidence intervals.
Definition of back pain
 Puberty stage 1 (index group)
 Puberty stage 2
 Puberty stage 3
 Puberty stage 4
 Puberty stage 5
Back pain anywhere
 1
 1.1
0.6–2.0
 2.3
0.8–6.5
 2.6
1.5–4.7
 2.4
1.4–4.3
Low back pain
 1
 0.9
0.1–8.5
 8.2
1.2–55.6
 19.6
5.0–76.3
 14.7
3.8–56.6
Mid back pain
 1
 1.4
0.7–2.8
 1.6
0.5–5.4
 1.0
0.5–2.1
 1.1
0.6–2.3
Neck pain
 1
 0.7
0.2–1.8
 1.2
0.2–5.6
 0.7
0.3–1.9
 0.5
0.2–1.4

Wedderkopp et al. BMC Musculoskeletal Disorders 2005 6:52   doi:10.1186/1471-2474-6-52