PICO for synthesis data dictionary

This data dictionary describes the coding system applied to the data extracted from systematic reviews included in the paper: "Cumpston MS, Brennan SE, Ryan R, Thomas J, McKenzie JE. 2023. Synthesis questions are incompletely reported: survey of systematic reviews" Data file: Cumpston_et_al_2023_PICO.xlsx (https://doi.org/10.26180/23597031) Analysis code: Cumpston_et_al_2023_PICO.do (https://doi.org/10.26180/23597073) Study protocol: Cumpston MS, McKenzie JE, Thomas J and Brennan SE. The use of ‘PICO for synthesis’ and methods for synthesis without meta-analysis: protocol for a survey of current practice in systematic reviews of health interventions. F1000Research 2021, 9:678. (https://doi.org/10.12688/f1000research.24469.2)