Hi everybody,

I have to do a meta-analysis. The aim of this meta-analysis (37 studies) is THE prevalence of bipolar disorder in an ASD (AUTISM SPECTRUM SYNDROME). i Have to taste The effect of these moderators (% percent female with ASD, percent of intellectual disability and percent with Communicative disorder)
However I ve a lot of missing data.
Is it correct to add 0.5 where the data is missing or 0?

The command that I use for meta regression is: metareg prev_ASD_BIPOLAR per_female_asd_bipolar , wsse( se_prev_ASD_BIPOLAR)

ps wsse(varname) All values of varname must be greater than zero



Thanks to everybody