Table 9.
Results for Tests of Proportion for Access to At Least 1 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 | 0.86 | 0.97 | 1.00 | 1.00 | 1.00 | 0.66 | 0.80 | 0.91 | 0.98 | 1.00 | 0.30 | 0.33 | 0.46 | 1.00 | 1.00 |
| TM | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.93 | 0.98 | 0.99 | 1.00 | 1.00 | 0.74 | 0.90 | 1.00 | 1.00 | 1.00 | |
| MA | 4 stars | 0.82 | 0.95 | 0.99 | 1.00 | 1.00 | 0.62 | 0.78 | 0.89 | 0.96 | 1.00 | 0.00 | 0.01 | 0.45 | 1.00 | 1.00 |
| TM | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.92 | 0.98 | 0.99 | 1.00 | 1.00 | 0.36 | 0.89 | 1.00 | 1.00 | 1.00 | |
| MA | 90th percentile | 0.77 | 0.92 | 0.99 | 0.99 | 1.00 | 0.49 | 0.62 | 0.80 | 0.94 | 0.99 | 0.00 | 0.01 | 0.45 | 1.00 | 1.00 |
| TM | 0.99 | 1.00 | 1.00 | 1.00 | 1.00 | 0.89 | 0.97 | 0.99 | 1.00 | 1.00 | 0.09 | 0.79 | 1.00 | 1.00 | 1.00 | |
| PPO | ||||||||||||||||
| MA | 50th percentile | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.61 | 0.97 | 0.99 | 1.00 | 1.00 | |||||
| TM | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.94 | 0.99 | 0.99 | 1.00 | 1.00 | ||||||
| MA | 4 stars | 0.99 | 1.00 | 1.00 | 1.00 | 1.00 | 0.61 | 0.97 | 0.99 | 1.00 | 1.00 | |||||
| TM | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.94 | 0.99 | 0.99 | 1.00 | 1.00 | ||||||
| MA | 90th percentile | 0.71 | 0.99 | 1.00 | 1.00 | 1.00 | 0.17 | 0.48 | 0.91 | 1.00 | 1.00 | |||||
| TM | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.94 | 0.99 | 0.99 | 1.00 | 1.00 | ||||||
Abbreviations: MA, Medicare Advantage; TM, traditional Medicare.
aAll differences between TM and MA are significant at P < .001 unless marked in bold.