Table 4 Simple and multiple linear regression analysis for the correlation between various preoperative clinical indicators and postoperative atrial fibrillation, duration of hospitalization, and hospital cost
Covariate | Dependent variable: duration of hospitalization | Dependent variable: hospital cost | ||||||
|---|---|---|---|---|---|---|---|---|
Univariate | Multivariate | Univariate | Multivariate | |||||
B (95% CI) | P value | B (95% CI) | P value | B (95% CI) | P value | B (95% CI) | P value | |
Male | 0.868 (− 1.730 to 3.465) | 0.510 | 1.867 (− 0.652 to 4.385) | 0.145 | − 0.327 (− 11.717 to 11.063) | 0.955 | 3.999 (− 6.710 to 14.708) | 0.461 |
Age (years) | − 0.026 (− 0.151 to 0.099) | 0.678 | − 0.015 (− 0.134 to 0.103) | 0.796 | 0.270 (− 0.274 to 0.815) | 0.328 | 0.346 (− 0.157 to 0.849) | 0.176 |
BMI (kg/m2) | − 0.025 (− 0.348 to 0.299) | 0.880 | 0.116 (− 0.181 to 0.413) | 0.441 | − 0.954 (− 2.360 to 0.452) | 0.182 | − 0.012 (− 1.276 to 1.252) | 0.985 |
Hypertension | − 2.131 (− 4.570 to 0.309) | 0.086 | − 2.522 (− 4.833 to 0.211) | 0.033* | − 13.934 (− 24.450 to 3.418) | 0.010* | − 12.851 (− 22.677 to 3.025) | 0.011* |
Diabetes | 0.457 (− 1.784 to 2.697) | 0.687 | − 0.154 (− 2.177 to 1.869) | 0.880 | 1.819 (− 7.990 to 11.627) | 0.714 | − 0.894 (− 9.496 to 7.708) | 0.837 |
Hs− CRP (mg/L) | 0.501 (0.251 to 0.751) | < 0.001* | 0.456 (0.202 to 0.710) | 0.001* | 1.080 (0.500 to 2.750) | 0.005* | 1.111 (0.031 to 2.192) | 0.044* |
LVEF (%) | − 0.235 (− 0.347 to 0.122) | < 0.001* | − 0.159 (− 0.276 to 0.043) | 0.008* | − 1.346 (− 1.814 to 0.877) | < 0.001* | − 1.122 (− 1.619 to 0.626) | < 0.001* |
AHI (events/h) | 0.112 (0.031 to 0.192) | 0.007* | 0.068 (− 0.011 to 0.146) | 0.090 | 0.441 (0.087 to 0.795) | 0.015* | 0.218 (− 0.116 to 0.552) | 0.199 |