Table 3

 Adjusted odds ratios (95% confidence intervals) from an observational population study by Johnson et al and adjusted hazard ratios (95% confidence intervals) from observational studies in patients with cardiac failure by Eurich et al and Masoudi et al

StudyAll cause mortalityAll cause hospital admissionsCardiovascular disease deaths
MetforminSulphonylureaMetformin plus sulphonylureaMetforminSulphonylureaMetformin plus sulphonylureaMetforminSulphonylureaMetformin plus sulphonylurea
Johnson et al 2002180.60 (0.49 to 0.74)10.66 (0.58 to 0.75)NANANA0.64 (0.49 to 0.84)10.64 (0.54 to 0.77)
Eurich et al 2005190.70 (0.54 to 0.91)10.61 (0.52 to 0.72)0.87 (0.73 to 1.05)10.93 (0.83 to 1.05)NANANA
Masoudi et al 200550.86 (0.78 to 0.970.99 (0.91 to 1.08)NANANANANANANA

NA=not applicable.