Variables | Univariate analysis OR (95% CI) | p-value | Multivariate analysis Adjusted OR (95% CI) | p-value |
---|---|---|---|---|
Age (years) | 1.019 (1.002–1.037) | 0.029 | 1.011 (0.979–1.043) | 0.512 |
BMI (kg/m2) | 0.878 (0.810–0.952) | 0.002 | 0.899 (0.797–1.014) | 0.082 |
Sex | ||||
 Male | 1 |  |  |  |
 Female | 0.833 (0.529–1.669) | 0.833 |  |  |
Reasons of operation | ||||
 FNF | 1 |  |  |  |
 ONFN | 0.731 (0.433–1.232) | 0.239 |  |  |
 OAH | 0.735 (0.396–1.366) | 0.331 |  |  |
 Operation time (min) | 1.024 (1.015–1.033) |  < 0.001 | 1.032 (1.018–1.046) |  < 0.001 |
 Intraoperative blood loss (mL) | 1.006 (1.004–1.009) |  < 0.001 | 1.004 (1.001–1.007) | 0.014 |
Type of anesthesia | ||||
 GA | 1 |  | 1 |  |
 CSEA | 2.212 (1.396–3.505) | 0.001 | 2.066 (1.018–4.194) | 0.065 |
Smoking | ||||
 No | 1 |  |  |  |
 Yes | 1.598 (0.803–3.181) | 0.182 |  |  |
Drinking | ||||
 No | 1 |  |  |  |
 Yes | 1.495 (0.732–3.054) | 0.269 |  |  |
Hypertension | ||||
 No | 1 |  | 1 |  |
 Yes | 2.008 (1.266–3.185) | 0.003 | 1.203 (0.615–2.352) | 0.589 |
Diabetes | ||||
 No | 1 |  |  |  |
 Yes | 1.480 (0.824–2.656) | 0.189 |  |  |
Cardiovascular disease | ||||
 No | 1 |  |  |  |
 Yes | 0.921 (0.440–1.927) | 0.828 |  |  |
Cerebrovascular disease | ||||
 No | 1 |  | 1 |  |
 Yes | 2.661 (1.362–5.198) | 0.004 | 1.748 (0.615–2.352) | 0.232 |
Osteoporosis | ||||
 No | 1 |  | 1 |  |
 Yes | 2.252 (1.415–3.582) | 0.001 | 2.117 (1.112–4.030) | 0.022 |
TP (g/L) | 0.981 (0.951–1.013) | 0.242 |  |  |
ALB (g/L) | 0.932 (0.887–0.979) | 0.005 | 1.066 (0.983–1.156) | 0.125 |
GLB (g/L) | 1.022 (0.979–1.066) | 0.325 |  |  |
SAA (mg/L) | 1.006 (1.004–1.009) |  < 0.001 | 1.004 (1.000–1.007) | 0.044 |
IRON (μmol/L) | 0.969 (0.942–0.997) | 0.027 | 0.986 (0.953–1.021) | 0.428 |
TIBC (μmol/L) | 1.007 (0.985–1.029) | 0.559 |  |  |
CRP (mg/L) | 1.003 (0.997–1.009) | 0.317 |  |  |
RBC (1,012/L) | 0.251 (0.163–0.386) |  < 0.001 | 0.341 (0.098–1.190) | 0.092 |
HB (g/L) | 0.944 (0.929–0.959) |  < 0.001 | 0.980 (0.917–1.048) | 0.006 |
HCT (%) | 0.832 (0.789–0.877) |  < 0.001 | 0.947 (0.792–1.133) | 0.553 |
MCV (fL) | 0.989 (0.957–1.022) | 0.512 |  |  |
MCH (pg) | 0.955 (0.881–1.036) | 0.272 |  |  |
MCHC (g/L) | 0.973 (0.954–0.993) | 0.007 | 0.954 (0.917–0.993) | 0.051 |