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Table 4 Risk of depression (HR and 95 % CI)a for the quintiles of the residuals of z-Pro-vegetarian Dietary Pattern and z-Alternative Healthy Eating Index-2010 on the z-Mediterranean Diet Score

From: A longitudinal analysis of diet quality scores and the risk of incident depression in the SUN Project

z-Pro-vegetarian Dietary Pattern Q1 Q2 Q3 Q4 Q5
 Median −1.01 −0.41 0.02 0.46 1.08
 Cases 251 193 224 188 195
 Person-years 27,451 26,224 27,173 25,535 24,863
 Baseline residual 1 (ref.) 0.79 (0.66–0.96) 0.89 (0.74–1.06) 0.80 (0.66–0.97) 0.84 (0.69–1.02)
 Repeated measuresb 1 (ref.) 0.82 (0.68–0.99) 0.88 (0.73–1.06) 0.79 (0.65–0.95) 0.82 (0.68–0.99)
z-Alternative Healthy Eating Index-2010 Q1 Q2 Q3 Q4 Q5
 Median −1.07 −0.43 0.01 0.43 1.07
 Cases 252 217 190 180 212
 Person-years 27,046 26,577 26,836 25,487 25,300
 Baseline residual 1 (ref.) 0.86 (0.71–1.03) 0.74 (0.61–0.89) 0.72 (0.59–0.87) 0.85 (0.70–1.03)
 Repeated measuresb 1 (ref.) 0.82 (0.68–0.99) 0.69 (0.57–0.83) 0.67 (0.55–0.81) 0.77 (0.64–0.93)
  1. Abbreviations: CI confidence interval, HR hazard ratio, Q1-Q5 Quintile1-Quintile5
  2. aAdjusted for age, sex, body mass index, smoking, physical activity during leisure time, use of vitamin supplement, z scores for Mediterranean Diet Score, total energy intake and presence of several diseases at baseline (cardiovascular disease, type 2 diabetes, hypertension and dyslipidaemia)
  3. bRepeated measures. Cumulative average for dietary patterns (at baseline and after 10 years of follow-up). Energy intake, body mass index and prevalence of diseases were also updated. For Pro-vegetarian Dietary Pattern, alcohol intake was also updated