https://onlinelibrary.wiley.com/doi/10.1111/apa.17499
They have studied the prevalence of hypothermia (<36.0°C) among 1988 neonates admitted to the neonatal unit at Haydom hospital (2018-2023), the association between admission temperature and neonatal mortality, and the impact of implementing radiant warmers.
Hypothermia was present in 47.0% on admission, 46.9% were normothermic or mildly hypothermic (36.0–37.5°C), and 6.1% hyperthermic. Of those admitted to the neonatal unit, 217 (10.9%) died. For every 1°C increase in temperature, neonatal mortality decreased by 31% (aOR 0.69, 95% CI 0.59–0.82). Admission temperature <34.5°C was strongly associated with mortality (aOR 3.56, 1.87–6.79). Mild hypothermia (36.0–36.5°C) was not associated with mortality (aOR 1.30, 0.72–2.37). Risk factors for hypothermia were bag mask ventilation (aOR 2.53, 2.07–3.11) and low birth weight. The introduction of radiant warmers from May 2022 was associated with a decrease in hypothermia (aOR 0.54, 0.41–0.72).