Table 4.
Multivariable model of factors associated with complications among surgery (salpingectomy or salpingostomy) patients.
| Any Complication aRR (95% CI) |
|
|---|---|
| Surgery | |
| Salpingectomy | Referent |
| Salpingostomy | 0.69 (0.65–0.73)* |
| Age | |
| <20 | Referent |
| 20–24 | 0.87 (0.82–0.93)* |
| 25–29 | 0.88 (0.83–0.93)* |
| 30–34 | 0.86 (0.81–0.91)* |
| 35–39 | 0.86 (0.81–0.92)* |
| 40–44 | 0.88 (0.81–0.95)* |
| ≥45 | 1.01 (0.81–1.26) |
| Year | |
| 2006 | Referent |
| 2007 | 1.00 (0.95–1.06) |
| 2008 | 0.98 (0.91–1.04) |
| 2009 | 1.03 (0.97–1.10) |
| 2010 | 0.98 (0.91–1.05) |
| 2011 | 1.03 (0.96–1.10) |
| 2012 | 1.01 (0.95–1.07) |
| 2013 | 0.99 (0.92–1.06) |
| 2014 | 1.02 (0.95–1.10) |
| 2015 | 1.03 (0.93–1.14) |
| Marital status | |
| Married | Referent |
| Single | 0.99 (0.95–1.03) |
| Other/unknown | 0.98 (0.91–1.06) |
| Race | |
| White | Referent |
| Black | 1.02 (0.97–1.06) |
| Hispanic | 1.15 (1.07–1.24)* |
| Other/unknown | 1.13 (1.08–1.20)* |
| Insurance status | |
| Commercial | Referent |
| Medicare | 0.94 (0.83–1.05) |
| Medicaid | 1.02 (0.98–1.05) |
| Uninsured | 1.12 (1.07–1.17)* |
| Unknown | 0.95 (0.87–1.03) |
| Hospital location | |
| Urban | Referent |
| Rural | 0.91 (0.82–1.01) |
| Hospital teaching status | |
| Non-teaching | Referent |
| Teaching | 0.92 (0.85–0.99)* |
| Hospital bed size | |
| <400 | Referent |
| 400–600 | 0.98 (0.90–1.07) |
| >600 | 1.08 (0.97–1.21) |
| Hospital region | |
| Northeastern | Referent |
| Midwest | 0.90 (0.79–1.02) |
| South | 0.95 (0.85–1.06) |
| West | 1.04 (0.93–1.17) |
| Comorbidity (Elixhauser) | |
| 0 | Referent |
| 1 | 1.49 (1.44–1.55)* |
| ≥2 | 1.68 (1.60–1.77)* |
| Annualized hospital volume | 0.998 (0.996–1.0004) |
*
P-value <0.05
Generalized estimating equations were fitted accounting for hospital-level clustering. The covariates included were type of surgery, age, year, marital status, race, insurance status, hospital location, teaching status, bed size, region, comorbidity and annualized hospital volume.