Table 2 Associations between dietary Omega fatty acids intake and the prevalence of suicidal ideation

Omega-3 fatty acids intake

Q1(< 0.90 g/d)

1(Ref)

1(Ref)

1(Ref)

Q2

(0.90–1.45 g/d)

0.71 (0.6 ~ 0.84)

0.72 (0.61 ~ 0.85)

0.75 (0.63 ~ 0.90)

0.002

Q3

(1.45–2.27 g/d)

0.65 (0.55 ~ 0.77)

0.67 (0.56 ~ 0.79)

0.68 (0.56 ~ 0.82)

< 0.001

Q4 (> 2.27 g/day)

0.61 (0.51 ~ 0.72)

0.63 (0.53 ~ 0.75)

0.60 (0.47 ~ 0.75)

< 0.001

P for trend

0.85 (0.80 ~ 0.89)

0.86 (0.81 ~ 0.91)

0.84 (0.78 ~ 0.91)

< 0.001

Omega-6 fatty acids intake

Q1 (< 8.61 g/d)

1(Ref)

1(Ref)

1(Ref)

Q2

(8.61–13.79 g/d)

0.72 (0.61 ~ 0.85)

0.72 (0.61 ~ 0.86)

0.75 (0.62 ~ 0.89)

0.002

Q3

(13.79–20.95 g/d)

0.69 (0.58 ~ 0.82)

0.71 (0.59 ~ 0.84)

0.75 (0.62 ~ 0.91)

0.004

Q4 (> 20.95 g/day)

0.67 (0.56 ~ 0.79)

0.69 (0.58 ~ 0.83)

0.70 (0.55 ~ 0.89)

0.003

P for trend

0.87 (0.83 ~ 0.92)

0.89 (0.84 ~ 0.94)

0.89 (0.83 ~ 0.96)

0.003

Omega-6/3 fatty acids ratio

Q1 (< 7.53)

1(Ref)

1(Ref)

1(Ref)

Q2 (7.53–9.10)

0.98 (0.82 ~ 1.18)

0.99 (0.83 ~ 1.19)

0.99 (0.82 ~ 1.20)

0.918

Q3 (9.10-11.41)

1.00 (0.83 ~ 1.19)

1.00 (0.84 ~ 1.20)

1.01 (0.84 ~ 1.22)

0.884

Q4 (> 11.41)

1.21 (1.02 ~ 1.44)

1.22 (1.03 ~ 1.46)

1.25 (1.04 ~ 1.50)

0.017

P for trend

1.06 (1.01 ~ 1.12)

1.07 (1.01 ~ 1.13)

1.07 (1.01 ~ 1.14)

0.017