Table 2. Brief pain inventory-short form mean pain scores in a 24-hour period in each treatment period and distribution of pain severity scores.
| T0 (N=85) | T2 (N=82) | T4 (N=75) | T6 (N=65) | T8 (N=57) | T12 (N=33) | |
|---|---|---|---|---|---|---|
| Worst pain (0-10) Score ±SD P |
6.3±1.8 | 4.9±1.2 <0.01 |
3.7±1.3 <0.01 |
3.4±1.2 <0.01 |
2.6±0.9 <0.01 |
1.4±0.8 <0.01 |
| Average pain (0-10) Score ±SD P |
4.6±1.5 | 3.5±1.2 <0.01 |
2.6±0.9 <0.01 |
2.1±0.7 <0.01 |
1.4±1.1 <0.01 |
0.9±0.5 <0.01 |
| Pain relief (0-100) Score ±SD P |
54.4±18.1 | 61.2±15.8 0.27 |
65.8±12.1 <0.01 |
80.1±9.8 <0.01 |
88.3±6.9 <0.01 |
94.4±5.8 <0.01 |
| Morphine-equivalent 24-hour dose (mg) Dose ±SD P |
136.2±33.9 | 109.4±29.8 0.57 |
96.8±22.1 0.32 |
108.4±27.2 0.64 |
76.3±19.8 0.80 |
39.1±6.8 0.87 |
| Mild | 0(0) | 11(13.4%) | 19(25.3%) | 24(36.9%) | 32(56.1%) | 22(66.7%) |
| Moderate | 51(60%) | 45(54.8%) | 39(52%) | 28(43.1%) | 19(33.3%) | 9(27.3%) |
| Severe | 34(40%) | 26(31.7%) | 17(22.7%) | 13(20%) | 6(10.5%) | 2(6.1%) |
| P | 0.32 | <0.01 | <0.01 | <0.01 | <0.01 |
Abbreviations: SD, standard deviation.