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Table 2 Multivariate logistic regression of the odds ratios (95% confidence interval) for the incidence of depressive symptoms by tertiles of seaweed intakes at baseline (n = 500)

From: Dietary seaweed intake and depressive symptoms in Japanese adults: a prospective cohort study

  Tertiles of seaweed intakes at baseline p for trend
Tertile 1 Tertile 2 Tertile 3
Range, g/1000 kcal/day 0, 2.9 2.9, 7.3 7.3, 46.1  
No. of participants 167 167 166  
No. of participants with depressive symptoms 10 21 15  
 Model 1a 1.00 (ref) 2.23 (0.99–5.01) 1.72 (0.73–4.09) 0.226
 Model 2b 1.00 (ref) 2.27 (0.99–5.19) 1.75 (0.72–4.22) 0.229
 Model 3c 1.00 (ref) 2.51 (1.07–5.93) 1.51 (0.61–3.77) 0.399
 Model 4d 1.00 (ref) 2.43 (1.02–5.82) 1.41 (0.55–3.65) 0.501
  1. aAdjusted for baseline Self-rating Depression Scale, sex, log age, and log body mass index
  2. bSame as Model 1 + occupation (desk work), education level (≥college), and living status (alone)
  3. cSame as Model 2 + smoking status (current, former, never), alcohol use frequency (every day, sometimes, never), breakfast skipping (≥3 times/week), physical activity (0, 0.1–22.9, ≥ 23 metabolic equivalent hours/week), and metabolic syndrome
  4. dSame as Model 3 + log intakes of protein, green leafy vegetables, and fish