Table 3.
Pre-drug response to pain measures by non-Hispanic whites and African Americans
| Variable | non-Hispanic whites (n=119) Mean (SD) |
African Americans (n=23) Mean (SD) |
|---|---|---|
| WTh (°C) | 34.1 (0.9) | 34.2 (1.3) |
| HPTh (°C) | 41.8 (2.4) | 41.9 (2.8) |
| HPTo (°C) | 47.2 (2.4) | 45.9 (2.7) |
| Aver rating @ 46°C | 36.3 (23.8) | 34.3 (30.7) |
| Aver rating @ 48°C | 53.2 (25.6) | 52.1 (32.5) |
| Aver rating @ 50°C | 67.0 (24.9) | 69.7 (28.1) |
| PPT masseter (kg) | 2.7 (0.8) | 2.8 (0.8) |
| PPT trapezius (kg) | 4.3 (1.6) | 4.4 (1.7) |
| PPT ulna (kg) | 4.3 (1.7) | 4.4 (1.6) |
| IPTh (sec)* | 121.0 (81.3) | 189.9 (134.6) |
| IPTo (sec) | 525.7 (259.1) | 422.1 (266.0) |
| IPInt | 204.9 (60.4) | 204.5 (67.3) |
| IPUnpl | 209.8 (60.8) | 205.8 (69.7) |
Abbreviations: HPTh, heat pain threshold; HPTo, heat pain tolerance; PPT, pressure pain threshold; IPTh, ischemic pain threshold; IPTo, ischemic pain tolerance; IPInt, ischemic pain intensity; IPUnpl, ischemic pain unpleasantness.
*
Sig. (2-tailed) p < 0.005