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. 2012 Jun 7;9:67. doi: 10.1186/1479-5868-9-67

Table 2.

Prevalence rates of mental disorders in the completely vegetarian, predominantly vegetarian, non vegetarian (total and matched) sample

  Completely Vegetarian (N=54) Predominantly Vegetarian (N=190) Non vegetarian (total sample) (N=3872) Non vegetarian (machted sample) (N=242) Comparision completely/ predominatly vs. matched non-vegetarians OR (95% CI) Comparision completely vs. matched non-vegetarians OR (95% CI)
Unipolar Depressive Disorders
1-month
7.4%
6.8%
6.3%
5.0%
1.44 (0.67-3.07)
1.53 (0.48-4.95)
12-month
24.1%
14.7%
11.9%
10.3%
1.75 (1.03-2.99)
2.75 (1.30-5.82)
lifetime
35.2%
25.8%
19.1%
20.7%
1.48 (0.98-2.26)
2.09 (1.10-3.95)
Anxiety Disorders
1-month
20.4%
12.6%
10.7%
8.7%
1.76 (0.99-3.13)
2.69 (1.12-5.99)
12-month
31.5%
19.5%
17.0%
13.2%
1.87 (1.15-3.01)
3.02 (1.52-5.98)
lifetime
31.5%
22.1%
18.4%
15.3%
1.77 (1.12-2.79)
2.55 (1.30-4.99)
Somatoform Disorders and Syndromes
1 month
9.3%
12.1%
7.8%
4.5%
2.72 (1.32-5.60)
2.14 (0.71-6.44)
12 month
16.7%
17.9%
11.6%
9.5%
2.04 (1.19-3.50)
1.90 (0.83-4-39)
lifetime
25.9%
25.8%
16.9%
15.3%
1.93 (1.23-3.03)
1.94 (0.96-3.91)
Eating Disorders
1-month
3.7%
1.1%
0.1%
0.0%
(not computable)
 
12-month
3.7%
1.6%
0.3%
0.8%
   
lifetime 5.6% 3.2% 0.6% 1.2%    

CI = confidence interval; OR = odds ratio.