Table 1 Patient characteristics before and after the propensity score matching
From: Assessment of the risk of permanent stoma after low anterior resection in rectal cancer patients
| Â | Â | Before the propensity score matching | After the propensity score matching | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Ileostomy (N = 101) | No ileostomy (N = 185) | Test | p value | Ileostomy (N = 93) | No ileostomy (N = 93) | Test | p value |
Sex | Female | 33.7% (N = 34) | 39.5% (N = 73) | Chi-square | 0.4007 | 36.6% (N = 34) | 35.5% (N = 33) | Chi-square | 1 |
Male | 66.3% (N = 67) | 60.5% (N = 112) | 63.4% (N = 59) | 64.5% (N = 60) | |||||
Age | N | 101 | 185 | Mann-Whitney U | 0.0708 | 93 | 93 | Mann-Whitney U | 0.6256 |
Mean (SD) | 61.98 (10.6) | 63.96 (10.75) | 62.69 (10.26) | 62.62 (11.17) | |||||
Median (IQR) | 61 (55–71) | 65 (58–72) | 62 (56–71) | 64 (59–69) | |||||
Range | 29–83 | 26–88 | 29–83 | 26–88 | |||||
BMI | N | 101 | 185 | Mann-Whitney U | 0.3901 | 93 | 93 | Mann-Whitney U | 0.6423 |
Mean (SD) | 26.86 (4.41) | 26.32 (4.33) | 26.63 (4.42) | 26.89 (4.53) | |||||
Median(IQR) | 26 (23.8–29.7) | 25,8 (23.4–28.4) | 25.8 (23.8–29) | 25.7 (23.9–29.9) | |||||
Range | 18.4–42.6 | 14.8–42.5 | 18.4–42.6 | 14.8–42.5 | |||||
CCI | 0 | 69.3% (N = 70) | 65.4% (N = 121) | Chi-square | 0.7288 | 69.9% (N = 65) | 66.7% (N = 62) | Fisher | 0.8288 |
1–5 | 23.8% (N = 24) | 28.1% (N = 52) | 24.7% (N = 23) | 25.8% (N = 24) | |||||
> 5 | 6.9% (N = 7) | 6.5% (N = 12) | 5.4% (N = 5) | 7.5% (N = 7) | |||||
Clinical stage | II | 29.7% (N = 30) | 35.7% (N = 66) | Chi-square | 0.5922 | 32.3% (N = 30) | 31.2% (N = 29) | Fisher | 0.8885 |
III | 63.4% (N = 64) | 57.8% (N = 107) | 62.4% (N = 58) | 61.3% (N = 57) | |||||
IV | 6.9% (N = 7) | 6.5% (N = 12) | 5.4% (N = 5) | 7.5% (N = 7) | |||||
RT | No RT | 20.8% (N = 21) | 17.3% (N = 32) | Chi-square | 0.0797 | 21.5% (N = 20) | 18.3% (N = 17) | Chi-square | 0.7094 |
Time RT-OPER > 6 weeks | 50.5% (N = 51) | 40.5% (N = 75) | 47.3% (N = 44) | 45.2% (N = 42) | |||||
Time RT-OPER < 6 weeks | 28.7% (N = 29) | 42.2% (N = 78) | 31.2% (N = 29) | 36.6% (N = 34) | |||||
PNI | N | 101 | 185 | Mann-Whitney U | 0.9463 | 93 | 93 | Mann-Whitney U | 0.7634 |
Mean (SD) | 41.41 (4.14) | 41.34 (4.05) | 41.44 (4.22) | 41.54 (4.13) | |||||
Median (IQR) | 41.7 (39.8–43.7) | 41.7 (39.4–43.6) | 41.7 (39.8–43.7) | 42 (39.4–43.8) | |||||
Range | 18.4–51 | 28.4–50.7 | 18.4–51 | 28.4–49.7 | |||||
Sympt AL | Yes | 5% (N = 5) | 23.8% (N = 44) | Fisher | < 0.001 | 5.4% (N = 5) | 20.4% (N = 19) | Fisher | 0.0037 |
No | 95% (N = 96) | 76.2% (N = 141) | 94.6% (N = 88) | 79.6% (N = 74) | |||||