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Table 4 Multinomial regression analysis of olive oil and wine consumption in stone formers and non-stone formers

From: Relevance of Mediterranean diet and glucose metabolism for nephrolithiasis in obese subjects

 

Score 1 <1 spoon/day

Score 2 1-3 spoons/day

Score 3 or 4 ≥4 spoons/day

 

Olive oil

    

Stone formers

6 (13.3)

28 (62.2)

11 (24.4)

 

Non-stone formers

33 (7.5)

221 (50)

188 (42.6)

 

OR

1

0.7

0.32

 

95% CI

 

0.3-1.8

0.1–0.9

 

p

 

0.46

0.036

 
 

Score 1

Score 2

Score 3

Score 4

 

No consumption

1–2 glasses/week

3–7 glasses/week

>7 glasses/week

Wine

    

Stone formers

13 (30.2)

4 (9.3)

16 (37.2)

10 (23.3)

Non-stone formers

189 (42.9)

115 (26.1)

83 (18.8)

54 (12.2)

OR

1

0.51

2.8

2.7

95% CI

 

0.2–1.6

1.3–6.1

1.1–6.5

p

 

0.24

0.009

0.027

  1. Olive oil and wine consumption was quantified according to the criteria adopted by the MedScore questionnaire that attributed a score between 0 and 4 to these item. Due to the low patient number, the score 3 and 4 of olive oil consumption were taken together in this multinomial regression analysis.