Table 2.
Percentage of Female Medicare Beneficiaries with at Least One Screening Mammogram in 1993 and 1998, by Different Definitions of a Screening Mammograma
| Definition of a Screening Mammogram User | 1993 N=61,962 | 1998 N=59,652 |
|---|---|---|
| Any mammogram claim | 24.2 | 31.9 |
| (CPT 76090,76091,76092) | (14,968) | (19,047) |
| Any bilateral mammogram claim | 23.3 | 30.8 |
| (CPT 76091, 76092) | (14,434) | (18,380) |
| Any screening mammogram claim | 8.3 | 23.0 |
| (CPT 76092) | (5,129) | (13,727) |
| Any screening mammogram by algorithm definition | 18.0 | 25.1 |
| (11,148) | (14,946) |
a
Claims found in Physician Medicare Part B claims.
Note: Definitions were significantly different within each year (p <0.0001) and prevalence differed significantly across the two years within each definition (p <0.0001).