Table 1.
Demographic characteristics and clinical data
| Group I (n = 60) | Group II (n = 60) | P-value | |
|---|---|---|---|
| Gender | |||
| Male | 42% (25) | 42% (25) | 1.00 |
| Female | 58% (35) | 58% (35) | |
| Age | |||
| Mean ± standard deviation | 52 ± 13.9 | 52 ± 12.5 | 0.962 |
| Height (inches) | |||
| Mean ± standard deviation | 67 ± 4.3 | 67 ± 4.0 | 0.807 |
| Weight (lbs) | |||
| Mean ± standard deviation | 185 ± 44.0 | 178 ± 50.1 | 0.458 |
| Duration of pain (months) | |||
| Mean ± standard deviation | 186 ± 121.7 | 196 ± 109.4 | 0.642 |
| Mode of onset of pain | |||
| Nontraumatic | 55% (33) | 57% (34) | 0.540 |
| Traumatic | 45% (27) | 43% (26) | |
| Back pain distribution | |||
| Bilateral | 72% (43) | 65% (39) | 0.40 |
| Left or right | 28% (17) | 35% (21) | |
| Leg pain distribution | |||
| Bilateral | 39% (23) | 35% (21) | 0.926 |
| Left or right | 61% (37) | 65% (39) | |
| Pain ratio | |||
| Back pain only | 2% (1) | 0% | 0.46 |
| Back worse than leg | 63% (38) | 57% (34) | |
| Leg worse than back | 3% (2) | 8% (5) | |
| Both equal | 32% (19) | 35% (21) | |
| Surgical history (number of interventions) | |||
| One | 50% (30) | 47% (28) | 0.603 |
| Two | 30% (18) | 23% (14) | |
| Three | 10% (6) | 17% (10) | |
| More than three | 10% (6) | 13% (8) | |
Note: Unless otherwise stated, data expressed as % (n).