Basic calculating errors in systematic reviews

Ref ID 193
First Author C. Kayaalp
Journal OBESITY SURGERY
Year Of Publishing 2013
URL https://link.springer.com/content/pdf/10.1007/s11695-013-0966-3.pdf
Keywords Surgery
Error
Problem(s) Errors in effect estimate calculations or data synthesis
Number of systematic reviews included 1
Summary of Findings The author highlights a number of calculation errors with regards to the mean age, gender, BMI, weight loss of patients, also follow-up duration and hypertension outcomes in a published systematic review of sleeve Gastrectomy on Hypertension published in Obesity Surgery in 2012. The author highlights that the systematic review provided study means and then estimated overall means using unweighted averages which did not incorporate study size. Differences in the reported and re-calculated weighted means are provided.
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? Not Applicable
Are the methods of the article described in enough detail to replicate the study? No