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Table 3 Association between daily dietary costs in tertiles and (high) dietary quality, by level of education (n = 4717)

From: Socioeconomic and ethnic differences in the relation between dietary costs and dietary quality: the HELIUS study

Dietary quality (DHD15-index – continuous score)

Lowest educated (n = 1682)

Medium educated (n = 1343)

Highest educated (n = 1692)

β

95% CI

β

95% CI

β

95% CI

Dietary costs

T1 (1,14-4,56€)

ref

 

ref

 

ref

 

T2 (4,57-5,58€)

6.55**

4.63; 8.47

6.91**

1.35; 5.26

6.59**

4.63; 8.56

T3 (5,59-17,15€)

5.09**

2.74; 7.44

6.96**

3.49; 8.06

8.06**

5.63; 10.48

High dietary quality (DHD15-index – dichotomous)

OR

95%CI

OR

95%CI

OR

95%CI

Dietary costs

T1 (1,14-4,56€)

ref

 

ref

 

ref

 

T2 (4,57-5,58€)

2.79**

2.00; 3.94

2.30**

1.54; 3.43

2.88**

1.96; 4.25

T3 (5,59-17,15€)

2.37**

1.54; 3.65

2.10*

1.27; 3.48

3.72**

2.35; 5.90

  1. High dietary quality was defined as the top quintile
  2. All models adjust for age, sex, ethnicity, smoking, energy intake and physical activity
  3. DHD15-index Dutch Healthy Diet index 2015, T Tertile, Ref reference group, CI Confidence Interval
  4. *P < 0.05; **P < 0.001