Table 2.
Exclusion Cascade of Patients in MarketScan and Medicare Databases Included in the Current Analysis
| Exclusion Criteria | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | Total |
|---|---|---|---|---|---|---|---|---|---|
| Patients initiating a statin following a MI hospitalization | |||||||||
| First statin fill in the calendar year (ie, the index statin fill) within 30 d following hospital discharge for MI* | 41 426 | 48 587 | 49 097 | 49 542 | 52 482 | 54 649 | 55 181 | 57 126 | 408 090 |
| No statin fill in the 365 d before the index statin fill | 35 279 | 39 268 | 39 302 | 39 207 | 41 556 | 43 176 | 43 411 | 43 922 | 325 121 |
| Lived in the United States from 365 d before through 365 d after the index statin fill | 32 764 | 36 602 | 36 808 | 36 610 | 38 737 | 39 960 | 40 124 | 40 711 | 302 316 |
| Had continuous full health insurance coverage from 365 d before through 365 d after the index statin fill† | 20 816 | 24 125 | 24 495 | 25 456 | 26 556 | 26 310 | 26 378 | 27 437 | 201 573 |
| Patients initiating a statin with DM without a history of CHD | |||||||||
| Had DM without a history of CHD on the date of the first statin fill in the calendar year (ie, the index statin fill)* | 50 1283 | 70 7366 | 82 9836 | 84 9712 | 93 1119 | 95 3773 | 81 7412 | 85 0835 | 644 1336 |
| No statin fill in the 365 d before the index statin fill | 167 379 | 309 883 | 292 096 | 264 936 | 301 381 | 257 963 | 220 603 | 249 703 | 2 063 944 |
| Lived in the United States from 365 d before through 365 d after the index statin fill | 165 427 | 307 968 | 289 873 | 262 795 | 299 035 | 255 675 | 217 741 | 247 510 | 2 046 024 |
| Had continuous full health insurance coverage from 365 d before through 365 d after the index statin fill† | 61 134 | 67 636 | 83 808 | 84 985 | 90 929 | 79 979 | 73 522 | 68 056 | 610 049 |
| Patients initiating a statin without a history of CHD or DM | |||||||||
| No history of CHD or DM on the date of the first statin fill in the calendar year (ie, the index statin fill)* | 1 675 698 | 2 394 577 | 2 763 030 | 2 709 655 | 2 917 717 | 2 871 238 | 2 380 732 | 2 465 263 | 20 177 910 |
| No statin fill in the 365 d before the index statin fill | 685 900 | 1 270 626 | 1 237 209 | 1 066 309 | 1 199 621 | 1 000 980 | 831 252 | 933 944 | 8 225 841 |
| Lived in the United States from 365 d before through 365 d after the index statin fill | 681 854 | 1 266 549 | 1 232 417 | 1 061 690 | 1 194 748 | 996 171 | 824 863 | 929 125 | 8 187 417 |
| Had continuous full health insurance coverage from 365 d before through 365 d after the index statin fill† | 239 058 | 258 626 | 325 082 | 321 807 | 328 819 | 282 255 | 265 499 | 223 722 | 2 244 868 |
CHD indicates coronary heart disease; DM, diabetes mellitus; MI, myocardial infarction.
Patients in MarketScan were required to be 21 to <65 years of age and patients in Medicare were required to be ≥66 years of age on the date of their index statin fill.
Full health insurance coverage includes inpatient, outpatient and pharmacy coverage for patients in MarketScan. Full health insurance coverage includes Part A (inpatient), Part B (outpatient), and Part D (pharmacy) coverage without Medicare Advantage or Part C coverage (a program that provides managed care without the need of submitting claims for services that beneficiaries received). Beneficiaries in Medicare were also required to be alive 365 days after the index statin fill. This requirement was not applied to beneficiaries in MarketScan because mortality data are not available in this data set.