Table 4.
Analyses of Categorical Recurrence Rates
| CATSS | 5% |
10% |
||
|---|---|---|---|---|
| Cotwin “Affected” | Cotwin “Unaffected” | Cotwin “Affected” | Cotwin “Unaffected” | |
| Male proband | 28 (12) | 199 (88) | 40 (9) | 410 (91) |
| Female proband | 20 (21) | 75 (79) | 30 (15) | 171 (85) |
| χ21 = 3.35, p = .14, OR = 0.53 [0.28/0.99] | χ21 = 4.67, p = .06, OR = 0.57 [0.34/0.92] | |||
| TEDS | 5% |
10% |
||
|---|---|---|---|---|
| Cotwin “Affected” | Cotwin “Unaffected” | Cotwin “Affected” | Cotwin “Unaffected” | |
| Male proband | 32 (22) | 114 (78) | 83 (29) | 208 (71) |
| Female proband | 21 (33) | 42 (67) | 52 (38) | 86 (62) |
| χ21 = 2.46, p = .24, OR = 0.56 [0.29/1.08] | χ21 = 3.23, p = .14, OR = 0.66 [0.43/1.01] | |||
| Merged Samples | 5% |
10% |
||
|---|---|---|---|---|
| Cotwin “Affected” | Cotwin “Unaffected” | Cotwin “Affected” | Cotwin “Unaffected” | |
| Male proband | 60 (16) | 313 (84) | 163 (22) | 578 (78) |
| Female proband | 41 (26) | 117 (74) | 97 (29) | 242 (71) |
| χ21 = 6.38, p < .05, OR = 0.54 [0.35/0.86] | χ21 = 5.21, p < .05, OR = 0.70 [0.52/0.94] | |||
Note: Data are shown as n (%) except where noted and in brackets, which are 95% CIs. The percentages 5% and 10% indicate which cut-off was used to select probands in each analysis (highest scoring 10% of each sample or highest scoring 5% of each sample). Merged samples are analyses of both Child and Adolescent Twin Study in Sweden (CATSS) and Twins Early Development Study (TEDS) merged into a single dataset. OR = odds ratio.