Table 5:
Multivariable Cox Proportional Hazards model of mortality controlling for quartiles of volume
Characteristics | Adjusted Hazards Ratio |
---|---|
Number of patients | 3,469 |
Number of hospitals | 598 |
Age of diagnosis | |
<40 | Referent |
40–49 | 0.83 (0.55–1.24) |
50–59 | 1.31 (0.88–1.95) |
60–69 | 1.20 (0.75–1.92) |
70–79 | 1.45 (0.69–3.06) |
>/=80 | 5.90 (2.61–13.33)* |
Race | |
White | Referent |
Black | 1.02 (0.67–1.56) |
Hispanic | 0.38 (0.23–0.64)* |
Other | 0.88 (0.46–1.71) |
Unknown | 0.62 (0.08–4.51) |
Year of diagnosis | |
2011 | Referent |
2012 | 1.01 (0.74–1.38) |
2013 | 0.91 (0.63–1.31) |
Insurance | |
Private | Referent |
Medicaid | 1.47 (1.02–2.10)* |
Medicare | 1.85 (1.21–2.81)* |
Other government/unknown | 1.34 (0.66–2.73) |
Uninsured | 1.07 (0.57–2.02) |
Median household income | |
<$38,000 | Referent |
$38,000-$47,999 | 0.92 (0.60–1.40) |
$48,000-$62,999 | 0.93 (0.63–1.38) |
$63,000+ | 0.70 (0.44–1.10) |
Unknown | 1.83 (0.19–17.12) |
Comorbidity score | |
0 | Referent |
1 | 1.06 (0.72–1.57) |
>/= 2 | 0.46 (0.14–1.52) |
Facility type | |
Academic/Research | Referent |
Community cancer | 1.83 (0.84–3.95) |
Comprehensive community ca | 1.36 (0.99–1.86) |
Integrated network cancer | 1.10 (0.67–1.82) |
Stage | |
1A2 | 0.54 (0.28–1.03) |
1B1 | Referent |
Histology | |
Squamous cell | Referent |
Adenocarcinoma | 0.71 (0.49–1.03) |
Adenosquamous | 1.39 (0.81–2.40) |
Grade | |
Well | Referent |
Moderate | 1.07 (0.63–1.83) |
Poorly | 2.36 (1.34–4.16)* |
Unknown | 0.80 (0.38–1.70) |
Hysterectomy type | |
Simple | Referent |
Radical | 0.97 (0.72–1.30) |
Route of surgery | |
Open | Referent |
Minimally invasive | 1.27 (0.97–1.67) |
Lymphadenectomy | |
No | Referent |
Yes | 1.18 (0.65–2.16) |
Prior year volume, quartiles | |
Low | Referent |
High | 1.07 (0.70–1.64) |
Medium High | 0.99 (0.70–1.40) |
Medium Low | 1.03 (0.67–1.60) |
p-value <0.05