Table 3 Mean morphine dosage in milligrams administered per day and the mean duration of the surgery in two groups and all patients
Variable | Total patients (n = 154) | With traction (n = 78) | Without traction (n = 76) | F value | P-value |
|---|---|---|---|---|---|
Administered morphine in milligrams per day (M ± SD) (range) | 6.5 ± 2.7 (0.8–12.8) | 6.6 ± 2.6 (0.8–12.8) | 6.4 ± 2.7 (1.5–12) | 1.58 | 0.66 |
Duration of the surgery(hours) (M ± SD)(range) | 1.4 ± 0.5 (0.3–2.9) | 1.4 ± 0.5 (0.5–2.9) | 1.4 ± 0.5 (0.3–2.8) | 0.007 | 0.95 |