Methodological concerns about a systematic review and meta-analysis of maternal active smoking during pregnancy and low birth weight.

Ref ID 665
First Author B.K. Zheng
Year Of Publishing 2019
Keywords Error
Public health
Low reporting quality
Problem(s) Intervention not described / defined
Errors in effect estimate calculations or data synthesis
Poor execution of narrative synthesis
Number of systematic reviews included 1
Summary of Findings Comment expressing concerns on the conduct of one systematic review including lack of specific definitions of active smoking in different included studies, poor execution of narrative synthesis regarding the number of cigarettes smoked and alleged errors in the quantitive synthesis (pooling of unadjusted, rather than adjusted odds ratios).
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? No
Are the methods of the article described in enough detail to replicate the study?