Table 4.

Discarded studies with reasons

Author	Reason
Al-Dawood and Albar (1993) [36]	No raw data on fever
Dreier et al. (2017) [37]	Study assessed academic performance, no data on neurodevelopmental disorders
Joseph et al. (2017) [38]	Primary exposure is premature birth
Liew et al. (2014) [24]	Primary exposure is Acetaminophen use
Liew et al. (2016) [39]	Primary exposure is Acetaminophen use
Mattson et al. (2003) [40]	Primary exposure is Varicella during pregnancy
Mazina et al. (2015) [41]	No control group for ASD
Pineda et al. (2003) [42]	No data on fever
Ystrom et al. (2017) [25]	Primary exposure is Acetaminophen use, no data on fever
Zerbo et al. (2017) [43]	No data on fever