Front-line intraperitoneal versus intravenous chemotherapy in stage III-IV epithelial ovarian, tubal, and peritoneal cancer with minimal residual disease: a competing risk analysis

Table 3 Sensitivity analysis of estimated subdistribution hazard ratio for CSM by removing a specific percent of cases at the extremes of propensity score^a

% of PS values trimmed	N^c	SDHR	95 % CI	P
0^b	548	0.82	0.70–0.96	0.014
1	514	0.81	0.79–0.81	<0.001
3	472	0.79	0.67–0.93	0.005
5	428	0.79	0.66–0.92	0.004
10	364	0.77	0.64–0.93	0.006
15	248	0.75	0.60–0.94	0.012
20	196	0.72	0.53–0.98	0.036
25	128	0.76	0.61–0.95	0.014

Abbreviations CI confidence interval, CSM cancer-specific mortality, PS propensity score, SDHR subdistribution hazards ratio
^aThe results demonstrates stability of subdistribution hazard ratio across the iterations
^bThe "0 %" trim indicates limiting the analysis to the region of propensity score overlap
^cN indicates number of patients remaining in the analysis

ISSN: 1471-2407