Table 2

Multivariate associations1 between characteristics and urine 1-hydroxypyrene glucuronide (1-OHPG) concentration in the healthy subjects from Rio Grande de Sul

Characteristic

Estimate [2]

95% Confidence interval

P-value [3]


Intercept

-0.74

-1.56, 0.079

0.076

Male

-0.048

-0.31, 0.22

0.72

Urban residence

0.028

-0.28, 0.33

0.86

Ever drink cachaHa

0.20

-0.13, 0.54

0.23

Age quartile 1

Reference

Age quartile 2

0.097

-0.23, 0.42

0.56

Age quartile 3

0.40

0.082, 0.72

0.014

Age quartile 4

0.17

-0.17, 0.50

0.33

Smoke Exposure4

0.98

0.045, 1.52

0.0004

Maté

0.53

0.16, 0.90

0.0053

Interaction (Smoke * Maté)

-0.51

-1.05, 0.10

0.11

Prepare barbeque weekly

0.21

-0.20, 0.62

0.32

Interaction (Smoke * BBQ)

-0.48

-1.026, 0.015

0.057


[1] All estimates come from a single multivariate linear regression model. The total model r2 was 0.21

[2] The model was fit using log10 transformed urine 1-OHPG concentrations.

[3] All P-values come from F-tests.

[4] Subjects reporting current smoking or a cotinine value greater then 1 were considered smoke exposed.

Fagundes et al. BMC Cancer 2006 6:139   doi:10.1186/1471-2407-6-139

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