The Effects of Safflower Yellow on Acute Exacerbation of Chronic Obstructive Pulmonary Disease: A Randomized, Controlled Clinical Trial

Table 3

Clinical primary and secondary outcomes.

Primary and secondary outcome measure	Intervention group; (n = 63)	Control group; (n = 64)	Odds Ratio (95%CI)	P value
Average length of hospital stay (days)	9.79±5.84	12.67±5.87		0.006
Charges per case (¥)	8269.6±3609.84	10905.00±5342.12		0.001
Days of mechanical ventilation (days)	5.17±3.21 (n = 12)	8.64±4.58 (n = 14)		0.038
Ventilated/non-ventilated patients	12/51	14/50	0.84(0.354-1.994)	0.693
28-day mortality (all causes)	2/63 (1.22%)	0/64 (0%)	0.969(0.928-1.102)	0.496