Table 8.
Mean cross-sectional area of disc at various levels of lumbar spine initially and on follow-up (n=51)
| Vertebral level | Cross-sectional area (cm2) |
Intergroup comparisons: p-valuea) (post hoc analysis) |
||||
|---|---|---|---|---|---|---|
| Initial (A) | 3 mo (B) | 6 mo (C) | A-B | A-C | B-C | |
| L1–2 | 14.82±0.61 | 14.50±0.58 | 14.67±0.58 | 0.000 | 0.005 | 0.000 |
| L2–3 | 14.85±0.59 | 14.53±0.26 | 14.60±0.22 | 0.000 | 0.001 | 0.000 |
| L3–4 | 14.89±0.57 | 14.70±0.30 | 14.73±0.35 | 0.003 | 0.010 | 0.275 |
| L4–5 | 14.88±0.58 | 14.69±0.21 | 14.78±0.18 | 0.048 | 0.492 | 0.000 |
| L5–S1 | 14.80±0.61 | 14.80±0.38 | 14.90±0.52 | 1.000 | 0.075 | 0.000 |
Values are presented as mean±standard deviation. A-B means initial versus 3 months; B-C means 3 months versus 6 months; A-C means initial versus 6 months.
a)
By repeated measures analysis of variance test.