Table 1. MCBS Initial Round Unit Response Rates by Demographic, Eligibility, and Health Status Characteristics1.
| Characteristic | Eligibles | Respondents | Response Rate | Statistical Significance2 |
|---|---|---|---|---|
|
| ||||
| N | N | Percent | ||
| All Sample | 14,315 | 11,817 | 82.6 | — |
| Age | ||||
| Under 65 Years | 2,609 | 2,174 | 83.3 | — |
| 65-74 Years | 5,391 | 4,442 | 82.4 | — |
| 75-84 Years | 4,664 | 3,837 | 82.3 | — |
| 85 Years or Over | 1,651 | 1,364 | 82.6 | — |
| Sex | *** | |||
| Male | 6,280 | 5,268 | 83.9 | — |
| Female | 8,035 | 6,549 | 81.5 | — |
| Race | ** | |||
| White | 12,079 | 9,938 | 82.3 | — |
| Black | 1,463 | 1,244 | 85.0 | — |
| Other | 773 | 635 | 82.2 | — |
| Original Reason for Medicare Entitlement | ** | |||
| Aged | 13,477 | 11,096 | 82.3 | — |
| Disabled | 831 | 715 | 86.0 | — |
| Medicaid Status | *** | |||
| No Medicaid | 12,127 | 9,941 | 82.0 | — |
| Medicaid | 2,188 | 1,876 | 85.7 | — |
| Current Reason for Medicare Entitlement | * | |||
| Aged | 11,706 | 9,643 | 82.4 | — |
| Disabled | 2,609 | 2,174 | 83.3 | — |
| Metropolitan Area Status | *** | |||
| Non-Metropolitan | 4,114 | 3,675 | 89.3 | — |
| Metropolitan | 10,201 | 8,142 | 79.8 | — |
| Census Regions | ** | |||
| North East | 2,917 | 2,336 | 80.1 | — |
| North Central | 3,565 | 2,906 | 81.5 | — |
| South | 5,385 | 4,540 | 84.3 | — |
| West | 2,216 | 1,833 | 82.7 | — |
| Others3 | 232 | 202 | 87.1 | — |
| HCC-DCG Risk Score Quintiles4 | ** | |||
| 0-20% (Lowest Score) | 2,892 | 2,288 | 79.1 | — |
| 20-40% | 2,840 | 2,286 | 80.5 | — |
| 40-60% | 2,864 | 2,356 | 82.3 | — |
| 60-80% | 2,858 | 2,439 | 85.3 | — |
| 80-100% (Highest Score) | 2,861 | 2,448 | 85.6 | — |
| Mortality | ||||
| Died in the Year Following Initial Round | 890 | 739 | 83.0 | — |
| Survived the Year Following Initial Round | 13,425 | 11,078 | 82.5 | — |
*
p<0.1.
**
p<0.05.
***
p<0.01.
1
MCBS community, fee-for-service sample. Beneficiaries with end stage renal disease are excluded.
2
Statistical significance testing for distribution.
3
Other includes Puerto Rico and other territories.
4
Diagnosis-based health status index computed from provider bills (claims). A higher hierarchical condition categories-diagnostic cost group (HCC-DCG) score indicates poorer health.
NOTES: MCBS is Medicare Current Beneficiary Survey. Data unweighted.
SOURCE: RTI analysis of the 1997-1999 MCBS.