Table 4

Difference in Medicare spending in the last 30 days of life by primary outpatient oncologist type

Parameter	Model 1: Simple				Model 2: Multivariable*
Parameter	N	Spending ($)	95% CI	P value	Spending ($)	95% CI	P value
Short stay, long stay, and skilled nursing facilities
Medical oncologist	7705	46 388	43 592 to 49 185	0.528	44 203	41 734 to 46 672	0.010
Gynecologic oncologist	4484	48 400	42 816 to 53 983	0.528	52 154	47 053 to 57 255	0.010
Physician/suppliers†(Medicare Part B)
Medical oncologist	7705	2648	2551 to 2744	<0.001	2643	2560 to 2727	<0.001
Gynecologic oncologist	4484	2343	2202 to 2483	<0.001	2350	2235 to 2466	<0.001
Institutional outpatient providers
Medical oncologist	7705	9398	8727 to 10 069	0.416	9427	8771 to 10 083	0.482
Gynecologic oncologist	4484	9906	8882 to 10 930	0.416	9856	8892 to 10 821	0.482
Hospice
Medical oncologist	7705	15 743	14 981 to 16 504	0.035	16 024	15 306 to 16 743	0.158
Gynecologic oncologist	4484	17 622	16 050 to 19 194	0.035	17 138	15 836 to 18 439	0.158
Home health agency
Medical oncologist	7705	1277	1194 to 1360	0.005	1262	1180 to 1345	0.023
Gynecologic oncologist	4484	1082	974 to 1190	0.005	1107	1007 to 1207	0.023
Durable medical equipment
Medical oncologist	7705	194	164 to 224	0.827	177	149 to 204	0.116
Gynecologic oncologist	4484	188	148 to 229	0.827	218	174 to 262	0.116
Part D
Medical oncologist	7705	1128	974 to 1283	0.238	1112	960 to 1264	0.475
Gynecologic oncologist	4484	1007	879 to 1136	0.238	1035	901 to 1169	0.475

*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.
†Suppliers includes non-physician providers including advanced practice providers, social workers, some laboratories, emergency medical services providers, and some ambulatory surgical centers.
CCI, Charlson Ccomorbidity Iindex ; CI, confidence interval; SEER, Surveillance, Epidemiology and End Results .