Table 2 Points awarded by the Newcastle-Ottawa Scale to the four studies on hypoxic ischemic encephalopathy (HIE) and heart rate variability (HRV)
| Â | Selection | Comparability | Outcome | Quality scorei | |||||
|---|---|---|---|---|---|---|---|---|---|
Representativeness of exposed cohorta | Selection of non-exposed cohortb | Ascertainment of exposurec | Presences of outcome of interestd | Comparability of cohortse | Assessment of outcomef | Long enough follow-upg | Adequacy of follow uph | ||
Aliefendioglu et al. 2012, Turkey [19] | A (✹) | A (✹) | A (✹) | A (✹) | A, B (✹✹) | A (✹) | A (✹) | A (✹) | Good quality |
Vergales et al. 2013, USA [20] | A (✹) | A (✹) | A (✹) | A (✹) | B (✹) | B (✹) | A (✹) | C | Good quality |
Goulding et al. 2015, Ireland [21] | A (✹) | A (✹) | A (✹) | A (✹) | B (✹) | B (✹) | A (✹) | A (✹) | Good quality |
Goulding et al. 2017, Ireland [22] | A (✹) | A (✹) | A (✹) | A (✹) | B (✹) | B (✹) | A (✹) | A (✹) | Good quality |