[R-meta] Help with estimate adjustment

[Massimo Baudo]

Hi,

I am writing for help.
In a meta-analysis using metamean in meta package I was trying to adjust with a covariate the obtained estimate to assess the impact.
This is the code I use:

MIR <- metamean (n = N..of.pts, 
              mean = MAP..mean..mmHg, 
              sd = MAP..DS..mmHg, 
              median = MAP..median..mmHg,
              q1 = MAP.Q1.mmHg,
              q3 = MAP.Q3.mmHg,
              #min = min,
              #max = max,
              studlab=author.year,
              sm = "MLN",
              method.tau = "DL",
              data=data); MIR

How can I perform adjustment (if even possible)?

Thank you in advance for your help.

Best regards,

Massimo