Table 1.
Multivariate simple logistic regression for mortality |
Multivariate simple logistic regression for any complications and mortality |
Multivariate simple logistic regression for LOS (LOS ≥ 6 d) |
Multivariate simple logistic regression for disposition of transfer to short-term hospital/other facilities/home health care |
|||||
Variable | OR (95%CI) | P value | OR (95%CI) | P value | OR (95%CI) | P value | OR (95%CI) | P value |
Hospital volume quartile | ||||||||
1st quartile | 1 | Referent | 1 | Referent | 1 | Referent | 1 | Referent |
2nd quartile | 0.92 (0.70-1.21) | 0.550 | 0.86 (0.76-0.99) | 0.029 | 0.82 (0.71-0.94) | 0.004 | 1.06 (0.91-1.23) | 0.451 |
3rd quartile | 0.80 (0.60-1.06) | 0.114 | 0.70 (0.61-0.80) | < 0.001 | 0.91 (0.80-1.05) | 0.194 | 0.65 (0.56-0.75) | < 0.001 |
4th quartile | 0.38 (0.27-0.54) | < 0.001 | 0.71 (0.62-0.82) | < 0.001 | 0.85 (0.74-0.98) | 0.024 | 0.77 (0.66-0.90) | 0.001 |
Access | ||||||||
Transfemoral | 1 | Referent | 1 | Referent | 1 | Referent | 1 | Referent |
Trans-apical | 1.54 (1.17-2.03) | 0.002 | 1.44 (1.26-1.64) | < 0.001 | 2.27 (1.96-2.63) | < 0.001 | 1.37 (1.18-1.60) | < 0.001 |
Age (10-yr increment) | 1.26 (1.07-1.47) | 0.005 | 0.97 (0.91-1.03) | 0.316 | 1.07 (1.00-1.14) | 0.051 | 1.57 (1.46-1.69) | < 0.001 |
Gender | ||||||||
Male | 1 | Referent | 1 | Referent | 1 | Referent | 1 | Referent |
Female | 1.09 (0.89-1.36) | 0.392 | 1.21 (1.11-1.33) | < 0.001 | 1.43 (1.30-1.57) | < 0.001 | 1.99 (1.79-2.21) | < 0.001 |
Charlson score | ||||||||
0 | 1 | Referent | 1 | Referent | 1 | Referent | 1 | Referent |
1 | 1.29 (0.78-2.14) | 0.321 | 1.13 (0.92-1.38) | 0.236 | 1.23 (1.01-1.50) | 0.038 | 1.40 (1.14-1.72) | 0.002 |
≥ 2 | 1.60 (1.01-2.55) | 0.047 | 1.73 (1.44-2.08) | < 0.001 | 2.02 (1.69-2.42) | < 0.001 | 1.72 (1.42-2.07) | < 0.001 |
Bed size of hospital | ||||||||
Small | 1 | Referent | 1 | Referent | 1 | Referent | 1 | Referent |
Medium | 0.43 (0.28-0.67) | < 0.001 | 0.89 (0.70-1.15) | 0.386 | 1.18 (0.91-1.52) | 0.215 | 1.17 (0.88-1.56) | 0.279 |
Large | 0.42 (0.29-0.61) | < 0.001 | 0.73 (0.58-0.91) | 0.005 | 1.36 (1.09-1.71) | 0.007 | 1.23 (0.96-1.58) | 0.103 |
Model 2 | ||||||||
Hospital volume quartile (5 procedures increment) | 0.88 (0.83-0.93) | < 0.001 | 0.94 (0.92-0.95) | < 0.001 | 0.93 (0.91-0.95) | < 0.001 | 0.95 (0.94-0.97) | < 0.001 |
Model 3 | ||||||||
Hospital volume quartile (10 procedures increment) | 0.77 (0.69-0.86) | < 0.001 | 0.87 (0.84-0.91) | < 0.001 | 0.87 (0.84-0.90) | < 0.001 | 0.91 (0.87-0.95) | < 0.001 |
LOS: Length of stay; OR: Odds ratio.