Table 4

Relative risk of positive psychotic-like symptoms in relation to estimated dietary intake of vitamin D

Dietary intake g/day·MJ

Positive psychotic-like symptoms ^a

Median

Interquintile range

Low level group

Middle level group

High level group

Energy adjusted

Multivariate^b

Energy adjusted

Multivariate^b

Vitamin D

No.

No.

RR

95% CI

RR

95% CI

No.

RR

95% CI

RR

95% CI

0.4

(0.01-0.5)

4132

Ref.

3668

240

0.6

(0.5-0.6)

4476

3462

0.87

0.82-0.93

0.88 ^a

0.82-0.93

185

0.71

0.58-0.86

0.72 ^a

0.59-0.88

0.7

(0.6-0.8)

4590

3393

0.84

0.79-0.89

0.84 ^a

0.79-0.90

171

0.64

0.53-0.79

0.65 ^a

0.52-0.80

0.9

(0.8-4.0)

4620

3343

0.83

0.78-0.88

0.82 ^a

0.77-0.88

175

0.66

0.54-0.81

0.63 ^a

0.50-0.78

^a Adjusted for age, total energy intake, country of birth, BMI and dietary intake of vitamin B12

Hedelin et al. BMC Psychiatry 2010 10:38   doi:10.1186/1471-244X-10-38