Perinatal testosterone exposure and autistic-like traits in the general population: a longitudinal pregnancy-cohort study

Table 2 Characteristics of participants with testosterone data, who did or did not complete the Autism-Spectrum Quotient (AQ)

	Completed AQ (n = 374)		Did not complete AQ (n = 332)
Categorical variables	N	n (%)	N	n (%)	P value
Maternal age at birth	366		320		<.01
<20		19 (5.2)		32 (10.0)
20-24		65 (17.8)		73 (22.8)
25-29		91 (24.9)		107 (33.4)
30-34		120 (32.8)		76 (23.8)
35+		71 (19.4)		32 (10.0)
Maternal education at pregnancy	366		320		.01
Completed secondary school		156 (42.6)		104 (32.5)
Did not complete secondary school		210 (57.4)		216 (67.5)
Family income below poverty line	364		318		<.01
Yes		115 (31.6)		149 (46.9)
No		249 (68.4)		169 (53.1)
Maternal smoking in pregnancy	366		320		.01
None		293 (80.1)		223 (69.7)
1 to 10 cigarettes daily		42 (11.5)		56 (17.5)
11+ cigarettes daily		31 (8.5)		41 (12.8)
Maternal alcohol intake during pregnancy	366		320		.01
None		199 (54.4)		212 (66.3)
Once a week or less		143 (39.1)		88 (27.5)
Several times a week or more		24 (6.6)		20 (6.3)
Gestational age	366		320		.36
< 32 weeks		3 (0.8)		7 (2.2)
32 to 37 weeks		64 (17.5)		48 (15.0)
38 to 40 weeks		231 (63.1)		210 (65.6)
> 40 weeks		68 (18.6)		55 (17.2)
Proportion of optimal birthweight	372		332		.41
<90		117 (31.5)		96 (28.9)
90 to 110		208 (55.9)		183 (55.1)
>110		47 (12.6)		53 (16.0)
Sex	374		332		.14
Male		190 (50.8)		181 (54.5)
Female		184 (49.2)		151 (45.5)
Apgar scores	366		319		.94
Generally normal		353 (96.4)		308 (96.6)
Fairly low		13 (3.6)		11 (3.4)
Critically Low		0 (0)		0 (0)
Parity	374		332		.51
1		167 (44.7)		159 (47.9)
2		121 (32.4)		95 (28.6)
>2		86 (23.0)		78 (23.5)

ISSN: 1866-1955