Table 2:

Concordance of effects of treatment on mortality and admission outcomes

Direction of effectAnalyses including all trials, no. (%)
n = 61
Analyses including only trials reporting both outcomes, no. (%)
n = 55*
Concordant
 Total no. of comparisons44 (72.1)33 (60.0)
 Benefit to both outcomes35 (57.4)25 (45.4)
 Harm to both outcomes9 (14.8)8 (14.5)
Discordant
 Total no. of comparisons17 (27.9)21 (38.2)
 Benefit to mortality, harm to admission8 (13.1)7 (12.7)
 Benefit admission, harm to mortality9 (14.8)14 (25.4)
Comparisons with non-overlapping CIs of treatment effects5 (8.2)5 (9.1)
  • Note: CI = 95% confidence interval.

  • * In 1 comparison, the odds ratio was exactly 1; thus, concordance or discordance could not be stated.

  • Three comparisons with statistically significant treatment effects for both outcomes.

  • One comparison with statistically significant treatment effects for both outcomes.