Modified Dachengqi Decoction Combined with Conventional Treatment for Treating Acute Exacerbation of Chronic Obstructive Pulmonary Disease: A Systematic Review Based on Randomized Controlled Trials

Table 3

Outcome measures for PO₂ (mmHg).

Study	Treatment (m ± s)	Control (m ± s)	Mean difference (95% CI)	𝑃 value
Fang and Shi, 2006 [9]	90 ± 21	68 ± 9	22.00 (11.40, 32.60)	𝑃=0.0004
Guo and Liang, 2011 [11]	82.3 ± 7.32	75.02 ± 8.34	7.28 (3.31, 11.25)	𝑃=0.0007
Li, 2009 [13]	80.25 ± 5.18	79.25 ± 7.36	1.00 (−2.22, 4.22)	𝑃=0.5452
Lu, 2010 [18]	92.95 ± 4.67	91.29 ± 5.02	1.66 (−1.70, 5.02)	𝑃=0.34
Meng, 2012 [20]	81.2 ± 4.9	75.2 ± 5.1	6.00 (3.47, 8.53)	𝑃<0.0001
Pang, 2009 [21]	69.87 ± 3.96	62.43 ± 4.14	7.44 (5.68, 9.20)	𝑃<0.0001
Meta			5.76 (4.60, 6.93)	𝑃<0.00001