. Author manuscript; available in PMC: 2018 Jun 13.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2018 Feb 1;101(1):201–210. doi: 10.1016/j.ijrobp.2018.01.067

Table 4.

Univariate and multivariate Cox regression analysis of predictors of death

	Bivariate		Multivariate
Variable	Hazard ratio	95% CI	Hazard ratio	95% CI
HIV status
Uninfected	Reference
Infected	1.12	0.60-2.12	1.12	0.57-2.20
Disease stage
I (IA, IB)	Reference
II (IIA, IIB)	2.21	0.67-7.32	1.65	0.47-5.79
III (IIIA, IIIB)/IV	2.87	0.84-9.81	2.32	0.65-7.54
Age (y)
<40	Reference
40-59	1.48	0.74-2.96	2.17^*	1.05-4.47^*
>60	1.22	0.45-3.29	2.46	0.80-7.54
Baseline hemoglobin level (g/dL)
≥10	Reference
>10^*	0.39^*	0.22-0.70^*	0.37^*	0.19-0.72^*
No. of chemotherapy cycles
1	2.51^*	1.12-5.61^*	2.25	0.99-5.13
2	0.86	0.30-2.49	0.67	0.22-2.06
3	1.08	0.52-2.27	1.10	0.52-2.35
≥4^*	Reference
Final EQD2 dose (Gy)
<75	Reference
≥75^*	0.56^*	0.31-1.01^*	0.52^*	0.27-0.97^*

Abbreviation: CI = confidence interval. Other abbreviation as in Table 2.

Statistically significant.