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. 2022 Mar 29;98(3):222–227. doi: 10.1136/sextrans-2021-055352

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© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license, which permits others to copy, redistribute, remix, transform and build upon this work for any purpose, provided the original work is properly cited, a link to the licence is given, and indication of whether changes were made. See: https://creativecommons.org/licenses/by/4.0/.

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Random-effects meta-analysis of studies reporting on the association between Mycoplasma genitalium during pregnancy and preterm birth. Forest plots show effect estimates for each study for unadjusted estimates (A) and adjusted estimates (B). In studies reporting multivariable analyses, the numbers of events or total number of observations included were not reported (NR). For each study, the solid diamond is the point estimate, the lines either side are the 95% CIs. A line ending in an arrow means that the confidence limit lies beyond the values of the x-axis. The open diamond is the summary estimate. The lines either side of the open diamond show the prediction interval if there are three or more studies in the meta-analysis. The x-axis is on the log scale.