Comparative effects of vitamins on individuals with Chronic Obstructive Pulmonary Disease (COPD): a network meta-analysis

The objectives of this network meta-analysis (NMA) are twofold: 1) to compare the effects of different vitamin therapies and identify the most effective option for enhancing lung function in COPD patients; and 2) to address gaps in the existing literature and provide high-quality evidence for clinical practice. The data shows "id","treatment","mean","sd" and "n". For continuous variables, we calculated the changes in means and standard deviations (SDs) from the original studies that reported pre- and post-intervention measurement values. In cases where data were presented in alternative formats, such as standard errors or interquartile ranges, we estimated the missing SDs utilizing available information from either the same study or other relevant studies within the network meta-analysis.