Comparison 3. Therapeutic cooling versus no cooling: by length of follow‐up.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Mortality	32		Risk Ratio (IV, Fixed, 95% CI)	Totals not selected
1.1 One month	13		Risk Ratio (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
1.2 Three months	6		Risk Ratio (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
1.3 Six months	14		Risk Ratio (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
1.4 Twelve months or more	7		Risk Ratio (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
2 Unfavourable outcome	26		Risk Ratio (IV, Fixed, 95% CI)	Totals not selected
2.1 Three months	9		Risk Ratio (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
2.2 Six months	15		Risk Ratio (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
2.3 Twelve months	6		Risk Ratio (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]