Brief Article
Copyright ©2010 Baishideng.
World J Gastroenterol. May 21, 2010; 16(19): 2435-2439
Published online May 21, 2010. doi: 10.3748/wjg.v16.i19.2435
Table 2 Comparison of pooled one-month mortality by different variables
Studies (n)Placebo-treated patients (n)Gender (M/F)One-month death (n)One-month mortality rate (%)χ2P value
Severity of disease
Unclassified26433/31710.944.3750.038
Moderate to severe8260171/895922.69
Geographical area(s)
US5156119/373522.440.7910.409
Europe516885/833118.45
Publication year
Before 19905168118/503017.861.3590.271
After 1991515686/703623.08