Table 4.
Final Poisson Mixed Model Results.
| Effect | Numerator d.f. |
Denominator d.f. |
F-Statistic | p-Value | Adjusted Effect Size Cohen’s f (95% CI) |
|---|---|---|---|---|---|
| Service Type | 2 | 726 | 29.41 | <0.0001 ** | 0.279 (0.219, 0.344) |
| Week | 1 | 726 | 0.33 | 0.5673 | 0 (0, 0.081) |
| Service Type*Week | 2 | 726 | 7.79 | 0.0005 ** | 0.136 (0.078, 0.203) |
| GMA | 1 | 726 | 4.88 | 0.0276 | 0.073 (0.02, 0.143) |
| Baseline NMI Score | 1 | 726 | 2.09 | 0.1491 | 0.039 (0, 0.115) |
| Caucasian | 1 | 726 | 5.21 | 0.0228 * | 0.076 (0.023, 0.146) |
Caption: To evaluate if sociodemographic, neurological function, or medical risk factors, which can be measured by the medical team who make the referrals, influenced access to therapy in the NICU, we refit the initial service model (“Service Type Over Time”) described above and added in fixed effects for race (Caucasian yes/no), baseline NMI, and GMA (normal/abnormal). * = p < 0.05; ** = p < 0.001. d.f = degrees of freedom; and CI = confidence interval.