iam trying to run a metanalysis comparing infection rates between different anticoagulation groups.

one of the studies gives the raw number of cases having warfarin and enoxaparin (2 anticoagulants) but not the number of infections in each group.

it then gives odds ratio for infection for warfarin (1.44 CI1.26-1.64) and odds ration for infection for enoxaparin (0.53 CI 0.44-0.65) but does not provide what the odds ratios are referenced to.