Table 2

Difference in composite rate of high-intensity end-of-life care by primary outpatient oncologist type

Cohort	Model 1: Simple				Model 2: Multivariable linear			Model 3: Multivariable logistic
Cohort	n	Percent of intense end-of-life care (%)	95% CI	P value	Percent of intense end-of-life care (%)	95% CI	P value	OR	95% CI	P value
Entire cohort*
Medical oncologist	7705	56.51	55.35 to 57.66	0.028	56.56	55.4 to 57.73	0.018	1	Ref.	0.018
Gynecologic oncologist	4484	54.06	52.2 to 55.92	0.028	53.97	52.21 to 55.72	0.018	0.90	0.82 to 0.98	0.018
Propensity score-matched cohort, with replacement†
Medical oncologist	2768	57.51	55.59 to 59.44	0.012	57.46	55.52 to 59.39	0.011	1	Ref.	0.011
Gynecologic oncologist	4484	54.06	52.2 to 55.92	0.012	54.1	52.38 to 55.81	0.011	0.87	0.78 to 0.97	0.011
Propensity score-matched cohort, without replacement‡
Medical oncologist	4484	56.91	55.40 to 58.42	0.020	56.78	55.27 to 58.29	0.027	1	Ref.	0.027
Gynecologic oncologist	4484	54.06	52.2 to 55.92	0.020	54.19	52.46 to 55.92	0.027	0.90	0.82 to 0.99	0.027

*Covariates included in the multivariable regression models: age at death, race, ethnicity, marital status, median income of residential zip code at death, percent of people with less than a high school education in the residential zip code at death, SEER registry at death, residential urban status at death, year of diagnosis, year of death, cancer site, cause of death, stage at diagnosis, Medicare/Medicaid dual eligibility at death, and CCI at death.
†Covariates included in the multivariable regression models: SEER registry at death, cause of death, and CCI at death.
‡Covariates included in the multivariable regression models: SEER registry at death, cause of death, and year of death.
CCI, Charlson Comorbidity Index; CI, confidence interval; OR, odds ratio; Ref., reference; SEER, Surveillance, Epidemiology and End Results .