. Author manuscript; available in PMC: 2021 May 10.

Published in final edited form as: Psychol Med. 2019 Oct 4;50(14):2425–2434. doi: 10.1017/S0033291719002617

Table 1.

Participant characteristics

	Fish oil (n = 134)	Placebo (n = 137)
	Mean ± s.d. or %	Mean ± s.d. or %
Age (years)	43.1 ± 7.5	42.4 ± 7.0
Sex (% female)	56.7	56.2
Race (% white)	81.3	84.7
Employment (% employed)	100	100
Family income (% <$ 50 000/year)	37.3%	39.9%
Schooling (years)	16.5 ±2.8	16.8 ±2.7
Intelligence quotient	113 ±12.6	113 ±12.2
Alcohol consumption (drinks/week)	2(4)^a	1(5)^a
Dietary EPA+ DHA (mg/day)^b	84.2 (11)^a	96.4 (10)^a

Median (interquartile range).

Dietary consumption calculated from food questionnaire