Accuracy of the actigraph in identifying treatment requirements for neonatal abstinence syndrome (NAS)
| Actigraph activity mean | Experienced clinical decision incorporating NAS score | ||
|---|---|---|---|
| Pretreatment (3 scores >8 or one >12) | No treatment (consecutively scoring <8) | Stabilised treatment (3 consecutive scores <6, feeding well and weight gain) | |
| Sensitivity 94% (95% confidence interval 71 to 99); specificity 85% (95% confidence interval 55 to 98). | |||
| cpm, Counts per minute | |||
| Greater than 90 cpm | 16 true positive | 2 false positive | 0 |
| Less than 90 cpm | 1 false negative | 11 true negative | 5 |