Table 3.
Summary of CHAID analysis using partial non-response as dependent variable (n = 1633).
| Node configuration | Cases completers/missing | Completers | |
|---|---|---|---|
| Split 1a | 1: RWD = No | N = 1052/269 | 79.6% |
| 2: RWD = Yes | N = 224/52 | 81.2% | |
| 3: RWD = No response | N = 12/24 | 33.3% | |
| Split 2b | 4: RWD = No & age < 14 years | N = 39/31 | 55.7% |
| 5: RWD = No & age = 14–16 years | N = 355/107 | 76.8% | |
| 6: RWD = No & age > 16 years | N = 658/131 | 83.4% | |
| Split 3c | 7: RWD = No & age > 16 years & parent not present at interview | N = 642/120 | 84.3% |
| 8: RWD = No & age > 16 years & parent present at interview | N = 16/11 | 59.3% |
CHAID = Chi-square Automatic Interaction Detection; RWD = Reading and writing disability.
aChi-square = 46.13; df = 2; adjusted p < 0.001. bChi-square = 33.81; df = 2; adjusted p < 0.001. cChi-square = 11.76; df = 1; adjusted p < 0.005.