Table 6. Comparison of different ΔPI groups.
| ΔPI | Gender | Slipped segment | Slip type | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Male (n=35) | Female (n=75) | L3 (n=6) | L4 (n=74) | L5 (n=30) | Degenerative (n=73) | Isthmic (n=37) | |||
| ΔPI <3° (n=50) | 19 (17.3) | 31 (28.2) | 3 (2.7) | 34 (30.9) | 13 (11.8) | 29 (26.4) | 21 (19.1) | ||
| 6°> ΔPI ≥3° (n=32) | 8 (7.3) | 24 (21.8) | 2 (1.8) | 21 (19.1) | 9 (8.2) | 25 (22.7) | 7 (6.4) | ||
| ΔPI ≥6° (n=28) | 8 (7.3) | 20 (18.2) | 1 (0.9) | 19 (17.3) | 8 (7.3) | 19 (17.3) | 9 (8.2) | ||
| χ2 | 1.703 | 0.320 | 3.578 | ||||||
| P | 0.427 | 0.988 | 0.167 | ||||||
Data are presented as n (%). Chi-squared test, P<0.05. ΔPI, the absolute value of the result of subtracting the Standing PI from the Supine PI; LL, lumbar lordosis; PI, pelvic incidence; PT, pelvic tilt; SS, sacral slope.