Table 6.

Percentage of Networks Made Up of Higher Quality Obstetricians and Gynecologists.^a

		Large Metropolitan					Metropolitan					Micropolitan and Rural
	Miles	15	30	60	120	240	15	30	60	120	240	15	30	60	120	240
HMO
MA	50th percentile	81.39	82.78	81.97	81.35	81.49	87.36	86.52	84.17	85.03	84.89	100.00	97.54	79.51	91.91	91.91
TM		83.11	83.43	83.67	84.32	84.43	90.70	90.28	87.14	84.94	84.41	98.71	95.93	83.09	86.71	84.53
MA	4 stars	49.17	51.61	52.84	53.66	53.38	62.58	61.33	57.07	55.31	55.52	0.00	2.46	46.95	47.96	54.68
TM		49.05	49.89	49.88	51.33	51.21	64.71	57.27	57.35	52.40	51.12	10.41	45.59	47.63	51.26	49.59
MA	90th percentile	30.30	30.88	30.75	29.94	29.65	26.61	25.93	27.78	28.29	28.03	0.00	2.46	29.69	38.33	34.06
TM		25.19	24.26	24.55	24.30	24.15	26.24	28.57	27.40	25.31	24.11	1.93	20.62	21.51	23.44	22.46
PPO
MA	50th percentile	81.65	85.03	84.81	83.81	84.14	93.85	90.67	84.69	84.09	83.99
TM		83.64	83.65	83.43	84.09	84.34	92.99	89.55	87.35	84.87	84.22
MA	4 stars	43.72	47.03	50.77	53.59	51.79	87.58	79.98	64.15	53.34	52.95
TM		49.82	49.60	49.60	51.23	51.28	66.23	58.82	59.08	53.15	51.34
MA	90th percentile	21.68	27.26	29.02	28.91	28.15	13.63	19.12	30.08	30.11	28.83
TM		26.13	24.79	24.56	24.34	24.28	24.91	28.52	28.22	26.16	24.42

Abbreviations: MA, Medicare Advantage; TM, traditional Medicare.

^aAll differences between TM and MA are significant at P < .001 unless marked in bold.