. Author manuscript; available in PMC: 2013 May 1.

Published in final edited form as: Schizophr Res. 2012 Feb 29;137(1-3):159–165. doi: 10.1016/j.schres.2012.02.004

Table 1.

Maternal vitamin A tertile levels (µg/dL) for offspring with schizophrenia and other schizophrenia spectrum disorder (SSD) cases and controls in the second and third trimesters.

Trimester 2	Cases (N=44)		Controls (N=70)

	N (%)	Range	N (%)	Range
Lowest tertile	20 (45.5)	12.5–29.2	23 (32.9)	15.3–29.5
Middle tertile	10 (22.7)	30.2–38.7	23 (32.9)	30.0–41.0
Highest tertile	14 (31.8)	42.7–70.0	24 (34.2)	41.4–66.8
Trimester 3	Cases (N=47)		Controls (N=87)
	N (%)	Range	N (%)	Range
Lowest tertile	18 (38.3)	15.8–26.4	29 (33.3)	11.6–26.6
Middle tertile	14 (29.8)	26.8–33.4	29 (33.3)	27.1–34.9
Highest tertile	15 (31.9)	35.0–69.5	29 (33.3)	35.4–80.2