Table 2.

List of seven studies that tested the effects of c-section delivery on the development of ADHD. The table describes if the studies differentiated between the types of c-sections and their effects, and finally shows the sample size and statistical significance level of the individual studies. The symbol - represents that for these studies, this information could not be found as the studies were systematic reviews. The data shows that elective vs. emergency c-sections seem to have different effects on ADHD. p levels less than 0.05 were considered statistically different.

Source	Type of C-Section	Effect	Sample Size (n)	Statistical Significance (p)
[124]	No differentiation	Altered dopamine response	-	-
[126]	No differentiation	No effect	248	p = 0.005
[127]	No differentiation	No effect	12,991	p < 0.05
[128]	No differentiation	Positive correlation to ADHD	-	-
[129]	Elective vs. intrapartum	Only intrapartum c-sections showed a positive correlation to ADHD	1,722,548	p < 0.05
[130]	Elective vs. intrapartum	Only intrapartum c-sections showed a positive correlation to ADHD	671,592	p < 0.05
[131]	Elective vs. intrapartum	No effect	13,141	p < 0.05