Table 1 : Gender differences in fetal activity throughout pregnancy and
hyperactivity/hyperkinesis as a child.

 Activities & Months of Pregnancy Gender (Mean & SEM)  t-score  Significance
 Male  Female
 1st month  0.10 (.016)  0.07 (.010)  1.433  0.152
 2nd month  0.13 (.018)  0.10 (.010)  1.516  0.130
 3rd month  0.40 (.026)  0.35 (.017)  1.589  0.112
 4th month  1.09 (.042)  0.97 (.028)  2.412  0.016
 5th month  1.71 (.054)  1.59 (.037)  1.952  0.051
 6th month  2.22 (.065)  2.08 (.044)  1.846  0.065
 7th month  2.66 (.074)  2.45 (.049)  2.289  0.022
 8th month  2.91 (.080)  2.66 (.053)  2.568  0.010
 9th month  2.84 (.081)  2.56 (.053)  2.877  0.004
 Postnatal hyperactivity  0.17 (.015)  0.07 (.007)  5.672  0.000

Ellis et al.Research Journal of Developmental Biology  2014 1:1DOI : 10.7243/2055-4796-1-1