I'm involved in a meta-analysis, and while collecting data from different studies about the lenghth of ICU stay some studies reported the mean in days , others reported it in hours What should I do about converting standard deviation and mean from days to hours ? Thanks

  • $\begingroup$ Easy, 1 day = 24 hours. That'll do it for mean and standard deviation. Variance is trickier: 1 square day = 576 square hours. $\endgroup$ – bof Sep 1 '18 at 5:50

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