TABLE 1.
Descriptives for ages and years of assessment by cohort
| Pre‐2014 | |||||||
|---|---|---|---|---|---|---|---|
| Study | Mean age | SD age | Min. age | Max. age | Median test year | Min. test year | Max. test year |
| Colorado | 25.3 | 2.8 | 16.5 | 34.4 | 2010 | 2002 | 2013 |
| Minnesota | 24.2 | 4.7 | 16.9 | 32.7 | 2009 | 1996 | 2013 |
| Post‐2014 | |||||||
|---|---|---|---|---|---|---|---|
| Study | Mean age | SD age | Min. age | Max. age | Median test year | Min. test year | Max. test year |
| Colorado | 34.0 | 2.6 | 27.9 | 41.1 | 2019 | 2018 | 2021 |
| Minnesota | 34.8 | 5.6 | 24.8 | 47.8 | 2019 | 2018 | 2021 |
| Age changes from pre‐ to post‐2014 | ||||
|---|---|---|---|---|
| Study | Mean age change | SD age change | Min. age change | Max. age change |
| Colorado | 8.8 | 1.7 | 4.6 | 17.7 |
| Minnesota | 10.6 | 3.6 | 4.3 | 23.8 |
| Sample sizes by zygosity | |||||||
|---|---|---|---|---|---|---|---|
| Study | Total sample size | Monozygotic | Same‐sex dizygotic | Opposite‐sex dizygotic | |||
| Individ., n | Pairs, n | Individ., n | Pairs, n | Individ., n | Pairs, n | ||
| Colorado | 1752 | 848 | 363 | 556 | 208 | 348 | 139 |
| Minnesota | 1700 | 1073 | 437 | 627 | 234 | 0 | 0 |
Individ., n = total number of individuals; Pairs, n = number of complete pairs; SD = standard deviation.