Table 4.
GLM multivariable analyses on average individual average costs per annum costs (full sample N = 234)
| Predictor | β coefficient | Robust SE | p‐value | CI (95%) |
|---|---|---|---|---|
| Hyperactive/Control | 557.85 | 153.98 | <.001 | (256.1 to 859.6) |
| Gender (male) | 446.28 | 140.20 | .001 | (171.5 to 721.1) |
| Age | −34.47 | 17.34 | .047 | (−68.5 to −0.5) |
| Conduct problems | 2.90 | 57.29 | .960 | (−109.4 to 115.2) |
| Emotional problems | 66.36 | 81.58 | .416 | (−93.5 to 226.3) |
| Carstairs Deprivation | 16.52 | 25.29 | .514 | (−33.1 to 66.1) |
| Constant | 373.65 | 307.99 | .225 | (−230.0 to 977.3) |
| Conditional of cost>0 (N = 123) | ||||
| Hyperactive/Control | 910.34 | 263.43 | .001 | (394.0 to 1426.7) |
| Gender (male) | 583.87 | 201.04 | .004 | (189.8 to 977.9) |
| Age | −42.05 | 22.85 | .066 | (−86.8 to 2.7) |
| Conduct problems | −106.41 | 106.09 | .316 | (−314.3 to 101.5) |
| Emotional problems | 173.42 | 135.22 | .200 | (−91.6 to 438.5) |
| Carstairs’ Deprivation | 58.33 | 56.24 | .300 | (−51.9 to 168.6) |
| Constant | 616.56 | 440.72 | .162 | (−247.2 to 1480.4) |
Top panel outcome variable is the average individual costs per annum and input variables baseline predictors with hyperactivity as a categorical variable. Bottom panel outcome variable is the same model conditional on having costs greater than zero during the follow‐up period (i.e. nonzero cases).