Table 3 Subgroup analysis of outcomes according to the presence of smoking status before and after propensity score matching analysis
Outcomes | Overall | Smoking status | P value | |
|---|---|---|---|---|
No | Yes | |||
Before propensity score matching analysis | Â | Â | Â | Â |
n | 252 | 164 | 88 | Â |
Blood loss (mL, median [IQR]) | 1820.44 [1284.71, 2565.35] | 1722.32 [1265.94, 2312.19] | 1938.30 [1511.84, 2795.67] | 0.014 |
Intraoperative massive blood loss (no/yes, %) | 187/65 (74.2/25.8) | 131/33 (79.9/20.1) | 56/32 (63.6/36.4) | 0.008 |
Length of hospital stay (days, median [IQR]) | 18.00 [14.00, 25.00] | 18.00 [14.00, 24.00] | 20.50 [15.75, 26.75] | 0.027 |
Length of hospital stay after surgery (days, median [IQR]) | 14.00 [11.00, 17.25] | 13.00 [11.00, 16.00] | 14.00 [11.00, 20.00] | 0.082 |
After propensity score matching analysis | Â | Â | Â | Â |
n | 132 | 74 | 58 | Â |
Blood loss (mL, median [IQR]) | 1815.00 [1310.19, 2572.20] | 1703.41 [1277.81, 2124.82] | 1938.30 [1680.41, 2826.36] | 0.019 |
Intraoperative massive blood loss (no/yes, %) | 98/34 (74.2/25.8) | 63/11 (85.1/14.9) | 35/23 (60.3/39.7) | 0.002 |
Length of hospital stay (days, median [IQR]) | 19.00 [14.00, 26.00] | 19.00 [14.00, 26.00] | 19.00 [14.00, 24.00] | 0.898 |
Length of hospital stay after surgery (days, median [IQR]) | 13.00 [9.75, 16.00] | 13.00 [10.00, 16.00] | 14.00 [9.00, 17.50] | 0.881 |