Fig 1.
Flow chart showing the search strategy.
Table 1.
Baseline characteristic for included studies.
Fig 2.
Forest plots showing primary outcomes between males and females.
M-H Mantel-Haenszel statistic.
Fig 3.
Forest plot showing secondary outcomes between males and females.
M-H: Mantel-Haenszel statistic.
Fig 4.
The comparison of long-term outcomes between males and females.
Parts of the Fig 4 (such as human outlines and brain images) were drawn by using pictures from Servier Medical Art. Servier Medical Art by Servier is licensed under a Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/).