Table 2.
Comparison of Demographics between Responders and Nonresponders in LLDH.
| Responders
N=18 |
Nonresponders
N=6 |
P value | |
|---|---|---|---|
| Age, y, mean (SD) | 65.1 (14.3) | 61.2 (9.2) | 0.54 |
| Sex, male/female, n | 7/11 | 2/4 | 1.00 |
| BMI, kg/m2, mean (SD) | 25.5 (4.8) | 26.0 (4.0) | 0.85 |
| Herniated disc level, n (%) | 0.84 | ||
| L3/4 | 2 (11.1) | 1 (16.7) | |
| L4/5 | 7 (38.9) | 3 (50.0) | |
| L5/S | 9 (50.0) | 2 (33.3) | |
| Type of hernia | 0.67 | ||
| Foraminal | 11 (61.1) | 3 (50.0) | |
| Extraforaminal | 7 (38.9) | 3 (50.0) | |
| Follow-up periods, months (SD) | 10.8 (10.2) | 9.2 (3.5) | 0.71 |
| Duration of leg pain, month (SD) | 5.1 (6.3) | 10.4 (14.4) | 0.24 |
| Allergy (%) | |||
| Skin rash | 2 (11.1) | 0 (0.0) | 1.00 |
| Anaphylactic reaction | 0 (0.0) | 0 (0.0) | 1.00 |
| LBP after CIT, n (%) | 4 (22.2) | 3 (50.0) | 0.31 |
| VAS for leg pain, mm (SD) | |||
| Baseline | 83.2 (19.8) | 87.5 (19.9) | 0.65 |
| 1 month | 19.7 (23.9) | 66.0 (37.5) | <0.01* |
| 3 months | 6.3 (10.6) | 66.7 (17.5) | <0.001* |
| Last follow-up | 3.5 (6.4) | 52.0 (46.0) | <0.001* |
SD, standard deviation; BMI, body mass index; LBP, low back pain; VAS, visual analog scale
*P<0.05