Table 2.
Multivariable logistic regression models of predictors of use of extended-duration prophylaxis low molecular weight heparin.
| Colectomy | Oophorectomy | Hysterectomy | |
|---|---|---|---|
| Age | |||
| ≤34 | Referent | Referent | Referent |
| 35–44 | 0.61 (0.37–1.01) | 1.21 (0.84–1.73) | 0.69 (0.42–1.11) |
| 45–54 | 0.73 (0.46–1.14) | 1.43 (1.03–1.97)* | 0.76 (0.49–1.17) |
| 55–64 | 0.58 (0.37–0.91)* | 1.47 (1.07–2.03)* | 0.77 (0.50–1.18) |
| ≥65 | 0.34 (0.22–0.54)* | 1.29 (0.92–1.80) | 0.68 (0.44–1.06) |
| Sex | |||
| Female | Referent | — | — |
| Male | 0.85 (0.73–1.00)* | — | — |
| Date | |||
| 2009 | Referent | Referent | Referent |
| 2010 | 1.34 (1.04–1.73)* | 1.92 (1.52–2.43)* | 1.39 (1.15–1.70)* |
| 2011 | 1.24 (0.96–1.61) | 2.37 (1.88–2.98)* | 1.72 (1.42–2.08)* |
| 2012 | 1.19 (0.91–1.56) | 3.07 (2.45–3.86)* | 1.96 (1.61–2.39)* |
| 2013 | 1.33 (0.99–1.78) | 3.72 (2.92–4.73)* | 2.39 (1.92–2.97)* |
| Region | |||
| Northeast | Referent | Referent | Referent |
| North central | 1.65 (1.28–2.11)* | 2.18 (1.83–2.60)* | 1.84 (1.58–2.15)* |
| South | 1.23 (0.96–1.57) | 1.09 (0.91–1.31) | 0.84 (0.70–1.00) |
| West | 1.07 (0.79–1.43) | 1.26 (1.03–1.53)* | 0.92 (0.76–1.12) |
| Unknown | 1.82 (0.99–3.35) | 1.72 (1.04–2.82)* | 2.38 (1.47–3.85)* |
| Comorbidity | |||
| 0 | Referent | Referent | Referent |
| 1 | 0.91 (0.74–1.12) | 0.89 (0.75–1.06) | 0.93 (0.80–1.07) |
| ≥2 | 0.53 (0.37–0.76)* | 0.83 (0.61–1.12) | 0.84 (0.66–1.06) |
| Colectomy type | |||
| Open | Referent | — | — |
| Laparoscopic | 0.77 (0.63–0.93)* | — | — |
| Oophorectomy type | |||
| No cytoreduction | — | Referent | — |
| Cytoreduction | — | 2.14 (1.85–2.48)* | — |
| Hysterectomy type | |||
| Abdominal | — | — | Referent |
| Laparoscopic | — | — | 0.66 (0.57–0.76)* |
| Robotic | — | — | 0.64 (0.53–0.76)* |
| Vaginal | — | — | 0.08 (0.02–0.31)* |
| Hospital complications (composite) | |||
| No | Referent | Referent | Referent |
| Yes | 0.86 (0.60–1.21) | 0.82 (0.63–1.06) | 0.84 (0.61–1.15) |
*
P<0.05