Higher vs. Lower DP for Ventilated Patients with Acute Respiratory Distress Syndrome: A Systematic Review and Meta-Analysis

Table 3

Results of subgroup analysis based on different standards.

	K	N	RR 95% CI	P	Study heterogeneity				P (between-groupcomparison)
					Chi^2	df	I^2 (%)	P
ARDS Severity									0.03
Mild to Severe ARDS	4	6287	1.19 [1.07, 1.33]	0.001	5.64	3	47	0.13
Moderate to Severe ARDS	4	1723	1.06 [1.02, 1.09]	0.002	4.14	3	27	0.25
Sample size									0.28
Sample Size≤500	5	1284	1.08 [1.02, 1.14]	0.005	5.09	4	21	0.28
500<Sample Size	3	6726	1.19 [1.00, 1.42]	0.05	11.76	2	83	0.003
Cut-off value									0.97
DP≤15cmH2O	4	6876	1.18 [1.02, 1.37]	0.03	11.91	3	75	0.008
15cmH2O<DP	3	936	1.18 [0.95, 1.46]	0.14	4.06	2	51	0.13