Table 2 Characteristics of patients in the unmatched and propensity-matched groups with or without continuous regional arterial infusion a
Unmatched groups | P | Propensity-matched groups | P | |||
|---|---|---|---|---|---|---|
Patient characteristics | CRAI (n = 247) | Non-CRAI (n = 1,307) | CRAI (n = 207) | Non-CRAI (n = 207) | ||
Mean age (years) | 54.6 ± 16.4 | 60.6 ± 18.1 | <0.001 | 56.7 ± 16.3 | 56.0 ± 17.6 | 0.684 |
Sex | ||||||
Males | 69.2% | 67.6% | 0.622 | 69.6% | 66.7% | 0.527 |
Females | 30.8% | 32.4% | 30.4% | 33.3% | ||
CCI score | ||||||
0 | 47.4% | 43.1% | 0.404 | 48.8% | 48.3% | 0.944 |
1 or 2 | 41.7% | 46.2% | 42.5% | 42.0% | ||
≥ 3 | 10.9% | 10.7% | 8.7% | 9.7% | ||
JCS score | ||||||
0 | 89.9% | 94.3% | 0.407 | 90.8% | 92.3% | 0.711 |
1 to 3 | 6.9% | 4.5% | 6.8% | 5.8% | ||
10 to 30 | 2.0% | 0.8% | 1.4% | 0.5% | ||
100 to 300 | 1.2% | 0.4% | 1.0% | 1.4% | ||
Prognostic factor score | ||||||
0 | 29.1% | 48.3% | <0.001 | 34.3% | 35.3% | 0.970 |
1 | 12.6% | 24.3% | 14.0% | 14.5% | ||
2 | 17.4% | 11.1% | 18.4% | 15.0% | ||
3 | 20.2% | 7.8% | 16.9% | 16.9% | ||
4 | 12.1% | 3.6% | 8.2% | 8.2% | ||
5 | 2.4% | 2.3% | 2.4% | 2.4% | ||
≥ 6 | 6.1% | 2.7% | 5.8% | 7.7% | ||
CT severity score | ||||||
0 | 13.4% | 47.8% | <0.001 | 15.9% | 15.5% | 0.999 |
1 | 9.3% | 20.4% | 11.1% | 10.6% | ||
2 | 38.9% | 21.7% | 42.0% | 43.0% | ||
3 | 23.9% | 6.0% | 18.4% | 18.8% | ||
4 | 14.6% | 4.1% | 12.6% | 12.1% | ||
Hospital volume (per 12 months) | ||||||
≤ 14 | 21.5% | 20.0% | 0.324 | 21.7% | 24.6% | 0.835 |
15 to 22 | 21.1% | 26.3% | 22.2% | 23.7% | ||
23 to 32 | 24.3% | 24.3% | 23.7% | 21.3% | ||
≥ 33 | 33.2% | 29.4% | 32.4% | 30.4% | ||
Hospital type | ||||||
Academic | 31.2% | 21.3% | 0.001 | 28.0% | 24.6% | 0.435 |
Community | 68.8% | 78.7% | 72.0% | 75.4% | ||