Table 3.
Genetic model fitting results for the parallel analyses of the three groups based on maternal educational level
| Model | −2LL | df | ctm | χ2 | df dif | P |
|---|---|---|---|---|---|---|
| 1. ACE model with ACE moderation | 44707.77 | 6,544 | ||||
| 1a. drop CLOW | 44707.77 | 6,545 | 1 | 0 | 1 | 1 |
| 1b. drop CMIDDLE | 44707.77 | 6,545 | 1 | 0 | 1 | 1 |
| 1c. drop CHIGH | 44707.78 | 6,545 | 1 | .01 | 1 | .92 |
| 2. AE model with ACE moderation | 44707.77 | 6,547 | 1 | 0 | 3 | 1 |
| 2a. drop CLOW moderation | 44707.77 | 6,548 | 2 | 0 | 1 | 1 |
| 2b. drop CMIDDLE moderation | 44707.77 | 6,548 | 2 | 0 | 1 | 1 |
| 2c. drop CHIGH moderation | 44707.77 | 6,548 | 2 | 0 | 1 | 1 |
| 3. AE model with AE moderation | 44707.77 | 6,550 | 2 | 0 | 3 | 1 |
| 3a. Equate A moderation over strata | 44708.00 | 6,552 | 3 | .23 | 2 | .89 |
| 3b. Equate E moderation over strata | 44709.92 | 6,552 | 3 | 2.15 | 2 | .34 |
| 4. Equate A & E moderation over strata | 44711.24 | 6,554 | 3 | 3.47 | 4 | .48 |
| 4a. drop A moderation | 44714.05 | 6,555 | 4 | 2.81 | 1 | .09 |
| 4b. drop E moderation | 44713.42 | 6,555 | 4 | 2.18 | 1 | .14 |
| 5. AE model without moderation | 44719.26 | 6,556 | 4 | 8.02 | 2 | .02 |
| 3 | 11.49 | 6 | .07 | |||
| 5a. Equate mean moderation over strata | 44720.46 | 6,558 | 5 | 1.2 | 2 | .55 |
| 5b. Drop the mean moderation | 44752.16 | 6,559 | 5a | 31.7 | 1 | .00 |
| 5. Best model | 44720.46 | 6,558 | 1 | 12.69 | 14 | .55 |
ctm compared to model