Fig. 1: Distribution of offspring sex analyzed in mammalian maternal immune activation studies published 2000–2018 and 2016–2018.

a Offspring sex represented in data of 432 MIA papers analyzed in the present article between 2000 and 2018. b Categorization of articles that have used analyses in both male and female MIA offspring. c Offspring sex represented in data of 105 MIA papers analyzed in the present article between 2016 and 2018. d Categorization of articles that have used analyses in both male and female MIA offspring related to the 2016–2018 time period. Actual numbers of identified studies and relative percentages are displayed in the pie chart. M = male offspring only; MF = male and female offspring; F = female offspring only; NR = not reported; MF/M/NR = combination of male and female offspring and/or male only and/or not reported. M/F = male and female analyzed separately; M + F = male and female combined with analysis by sex; M + F comb = reported no sex effects but did not show the respective analysis and combined male and female data; M + F NR = both male and female combined for all the experiments without reporting whether or not sex effects had been analyzed; M/F, M + F, M + F comb, M + F NR = combination of M/F and/or M + F, M + F comb, M + F NR (at least in one set of experiments)