Table 2.
Summary of models and number of outcomes in exposed case and control cohorts.
| Figures | Competing risks model (covariates) |
Exposure | Outcomea | Number of outcomes | |
|---|---|---|---|---|---|
| Cases | Controls | ||||
| 1a. | Individual matching (sex, birth year) | METH/AMPH | PD | 15 | 27 |
| Females | 8 | 6 | |||
| Males | 7 | 21 | |||
| Case–only (birth year) | Females vs. Males | (see above) | — | ||
| 1b. | Individual matching (sex, birth year) | METH/AMPH | PD/PT | 30 | 49 |
| Females | 18 | 18 | |||
| Males | 12 | 31 | |||
| Case–only (birth year) | Females vs. Males | (see above) | — | ||
| 2. | Individual matching (sex, birth year) | Cocaineb,c | PD/PT | 4 | 22 |
| Case–only (sex, birth year) | Cocaine vs. METH/AMPH | PD/PT | 4 vs. 30 | — | |
| Case–only (sex, birth year) | METH/AMPH vs. cocaine | PD/PT | 30 vs. 4 | — | |
| 3a.d | Individual matching (sex, birth year) | METH/AMPH | PD>0 event time | 12 | 27 |
| Females | 8 | 6 | |||
| Males | 4 | 21 | |||
| Case–only (birth year) | Females vs. Males | (see above) | — | ||
| 3b.d | Individual matching (sex, birth year) | METH/AMPH | PD/PT>0 event time | 22 | 49 |
| Females | 15 | 18 | |||
| Males | 7 | 31 | |||
| Case–only (birth year) | Females vs. Males | (see above) | — | ||
a
PD: ICD-9-CM 332.0 primary Parkinson's disease; PD/PT: ICD-9-CM 332.0, 332.1, 333.0 333.1.
b
All exposed cases had event times > 0; only one case had PD ICD-9 332.0.
c
Includes 3 female cases and one male case, 8 female and 14 male matched controls.
d
Figure is provided in an online supplement.