Table 5.

Association of Reconstruction with Overall Mortality

	N Patients by Reconstruction			HR for Reconstruction vs No Reconstruction
	N Patients	No	Yes	HR Estimate	95% CI	P
Unadjusted: reconstruction status only (ie, with no covariates)	9738	8774	964	0.79	0.72–0.88	<0.001
Partial adjustment: adjusts for age, race, and Charlson score	9738	8774	964	0.91	0.82–1.01	0.081
Full adjustment: in addition, adjusts for cancer history, treatment, insurance, stage, and diagnosis year	9738	8774	964	0.95	0.86–1.06	0.35
Subset analysis: only those with chemotherapy as part of treatment, with full adjustment covariates	9202	8263	939	0.95	0.85–1.06	0.37
Landmark analysis (6 mo): excludes those with <6 mo follow-up, with full adjustment covariates	9620	8667	953	0.94	0.84–1.04	0.24
Landmark analysis (12 mo): excludes those with <12 mo follow-up, with full adjustment covariates	8953	8042	911	0.97	0.87–1.09	0.62

Results of separate Cox models for covariate adjustment.