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Table 3 Logistic regression

From: Serum concentrations of kynurenines in adult patients with attention-deficit hyperactivity disorder (ADHD): a case–control study

 

Adjusted for sex

Adjusted for sex and tryptophan

B

p value

Odds ratio (95 % confidence interval)

B

p value

Odds ratio (95 % confidence interval)

Tryptophan

−0.50

0.002**

0.61 (0.45–0.83)

   

Kynurenine

−0.23

0.14

0.80 (0.59–1.08)

−0.04

0.80

0.96 (0.69–1.34)

Kyn/Trp-ratio (KTR)

0.12

0.45

1.12 (0.83–1.51)

−0.11

0.53

0.90 (0.64–1.25)

3-hydroxykynurenine (HK)

−0.01

0.70

0.94 (0.70–1.27)

0.01

0.94

1.01 (0.74–1.38)

Kynurenic acid (KA)

−0.32

0.04*

0.73 (0.53–0.99)

−0.21

0.21

0.81 (0.59–1.12) 

Xanthurenic acid (XA)

−0.43

0.006**

0.65 (0.48–0.89)

−0.30

0.07

0.74 (0.54–1.03)

Anthranilic acid (AA)

−0.01

0.97

0.99 (0.74–1.34)

0.04

0.79

1.04 (0.77–1.42)

3-hydroxyanthranilic acid (HAA)

−0.47

0.003**

0.63 (0.46–0.85)

−0.38

0.02*

0.69 (0.50–0.94)

Quinolinic acid (QA)

−0.02

0.90

0.98 (0.73–1.32)

0.04

0.82

1.04 (0.76–1.41)

Riboflavin (vitamin B2)

−0.39

0.01*

0.68 (0.50–0.92)

−0.34

0.03*

0.71 (0.52–0.97)

Total vitamin B6

−0.17

0.26

0.84 (0.62–1.14)

−0.09

0.55

0.91 (0.67–1.24)

Cotinine

1.97

<0.001***

7.17 (4.37–12.58)

1.94

<0.001***

6.96 (4.22–12.25)

  1. Odds ratio of ADHD per tertile of variable. Cotinine is divided into three categories corresponding to the serum level in non-smokers, smokers and heavy smokers. All participants included: N = 264. Significance <0.001: ‘***’, <0.01: ‘**’, <0.05: ‘*’