DROS–SVRD linkage | Mortality–SVRD linkage | |||
Matches identified in step A | Matches identified in step B, C or D | Matches identified in step A | Matches identified in step B, C or D | |
Male (%) | 86.05 | 85.45 | 51.96 | 48.81 |
Age† | ||||
Mean (years) | 45 | 38 | 73 | 73 |
Median (years) | 45 | 35 | 76 | 77 |
Race/ethnicity | ||||
White (%) | 74.52 | 69.33 | 70.73 | 66.33 |
Hispanic (%) | 13.18 | 15.76 | 13.30 | 14.41 |
Black (%) | 3.78 | 5.79 | 8.34 | 11.82 |
Asian (%) | 5.73 | 5.80 | 7.00 | 6.55 |
Other (%) | 2.79 | 3.32 | 0.63 | 0.90 |
Residential location‡ | ||||
Urban (%) | 81.96 | 81.16 | 87.80 | 87.41 |
Suburban (%) | 12.22 | 10.95 | 6.94 | 6.10 |
Large rural town (%) | 3.11 | 3.46 | 3.11 | 2.64 |
Small rural town (%) | 2.28 | 2.48 | 1.61 | 2.37 |
*In both linkages, all variables in the step A match are significantly different (p<0.01) from step B/C/D matches.
†Refers to cohort members’ age at the midpoint of their observation period.
‡Categories are based on the US Census Bureau’s urban-rural classification system and refer to cohort members’ residential location at time they entered the cohort.
DROS, Dealer Record of Sale database; SVRD, Statewide Voter Registration Database.