Table 5. Subgroup analysis of the effects of therapeutic hypothermia on death among asphyxiated neonates with hypoxic-ischemic encephalopathy.

Variables	Characteristics	Pooled prevalence (95% CI)	I2(P-value)
Country income level	High	0.76 (0.69, 0.83)	0.0% (0.975)
	Upper middle	0.62 (0.41, 0.83)	0.0% (0.634)
	Low-middle	0.50 (0.14, 0.86)	0.0% (0.998)
	Low	0.32 (-0.95, 1.60)	0.0% (0.813)
Methods of cooling	Selective head cooling	0.74 (0.60, 0.87)	0.0% (0.798)
	Whole body cooling	0.74 (0.66, 0.81)	0.0% (0.998)
Device of cooling	Cooling caps	0.74 (0.60, 0.87)	0.0% (0.798)
	Cooling blanket	0.74 (0.64, 0.85)	0.0% (0.721)
	Cold gel pack	0.73 (0.62, 0.84)	0.0% (0.993)