Table 1.
Demographics of cohort
| Patient demographics | PT cutoff: 20° (n=188) |
PI-LL cutoff: 11° (n=188) |
||||
|---|---|---|---|---|---|---|
| PT <20° (n=64), n (%) | PT ≥20° (n=124), n (%) | P a | PI-LL <11° (n=126), n (%) | PI-LL ≥11° (n=62), n (%) | P a | |
| Age, mean (SD) | 61.2 (10.1) | 62.9 (10.3) | 0.268 | 61.8 (10.5) | 63.4 (9.66) | 0.290 |
| Sex | ||||||
| Male | 32 (50.0) | 48 (38.7) | 0.184 | 56 (44.4) | 24 (38.7) | 0.555 |
| Female | 32 (50.0) | 76 (61.3) | 70 (55.6) | 38 (61.3) | ||
| BMI, mean (SD) | 31.4 (5.64) | 30.5 (6.74) | 0.342 | 31.0 (5.97) | 30.4 (7.20) | 0.609 |
| Smoking | ||||||
| Never | 37 (57.8) | 76 (61.3) | 0.715 | 75 (59.5) | 38 (61.3) | 0.918 |
| Current | 7 (10.9) | 16 (12.9) | 15 (11.9) | 8 (12.9) | ||
| Former | 20 (31.2) | 32 (25.8) | 36 (28.6) | 16 (25.8) | ||
| Months follow-up, mean (SD) | 22.1 (12.0) | 23.0 (12.3) | 0.627 | 21.6 (11.6) | 24.7 (13.1) | 0.121 |
| Symptom duration (months) | ||||||
| <3 | 36 (56.2) | 35 (28.2) | 0.001* | 56 (44.4) | 15 (24.2) | 0.010* |
| 3-6 | 14 (21.9) | 42 (33.9) | 30 (23.8) | 26 (41.9) | ||
| >6 | 14 (21.9) | 47 (37.9) | 40 (31.7) | 21 (33.9) | ||
| Workers compensation received? | ||||||
| No | 40 (62.5) | 71 (57.3) | 0.786 | 71 (56.3) | 40 (64.5) | 0.540 |
| Yes | 16 (25.0) | 35 (28.2) | 37 (29.4) | 14 (22.6) | ||
| Retired | 8 (12.5) | 18 (14.5) | 18 (14.3) | 8 (12.9) | ||
*Statistical significance, aBaseline demographics were compared between groups with Pearson's Chi-square, Fisher's exact, Independent samples t-test, Mann-Whitney U, One-way ANOVA, or Kruskal-Wallis H-test. PI-LL - Pelvic incidence-lumbar lordosis, PT - Pelvic tilt, SD - Standard deviation