Table 4.
Demographic data and symptom-related characteristics of the 2 groups
| Variable | Favorable group (n = 48) | Unfavorable group (n = 34) | OR or difference | 95% CI | p-value |
|---|---|---|---|---|---|
| Age (yr) | 40.38 ± 14.26 | 41.35 ± 16.97 | -0.97 ± 4.89 | -10.877 to 8.924 | 0.256† |
| Male ratio | 30 (62.5) | 22 (64.7) | 1.18 | 0.321 to 4.326 | 0.804‡ |
| Smoking | 16 (33.3) | 10 (29.4) | 1.28 | 0.332 to 4942 | 0.720‡ |
| Height (cm) | 169.47 ± 10.40 | 169.44 ± 10.33 | 0.04 ± 3.29 | -6.61 to 6.69 | 0.991† |
| Weight (kg) | 69.67 ± 13.87 | 69.24 ± 14.04 | 0.42 ± 4.42 | -8.512 to 9.361 | 0.924† |
| Body mass index (kg/m2) | 24.23 ± 4.36 | 24.02 ± 3.53 | 0.21 ± 1.28 | -2.383 to 2.814 | 0.869† |
| Diabetes | 2 (4.2) | 4 (11.8) | 0.34 | 0.109 to 2.354 | 0.379‡ |
| Hypertension | 8 (16.7) | 10 (29.4) | 0.50 | 0.113 to 2.265 | 0.368‡ |
| Previous block | 30 (62.5) | 18 (52.9) | 1.67 | 0.463 to 6.006 | 0.433‡ |
| Trauma history | 8 (16.7) | 4 (11.8) | 1.58 | 0.254 to 9.817 | 0.622‡ |
| Median symptom duration (wk) | 1.00 (95% CI, 1.04–5.10) | 2.00 (95% CI, 1.67–2.60) | 0.64 ± 1.06 | -0.349 to 2.378 | 0.132§ |
| Dominant symptom, back pain:leg pain | 22:26 | 4:30 | 6.346 | 1.183 to 30.042 | 0.021‡ |
Values are presented as mean±standard deviation or number (%) unless otherwise indicated.
OR, odds ratio; CI, confidence interval.
†
Independent t-test.
‡
Pearson chi-square test.
§
Nonparametric Mann-Whitney U-test.