Table 2

Weighted* multivariate logistic regression (Odds Ratio, OR, and 95% confidence interval, 95% CI) models.

INDEPENDENT

VARIABLES

OUTCOME VARIABLES


(1)

OR (95% CI)

(2)

OR (95% CI)

(3)

OR (95% CI)

(4)

OR (95% CI)


Gender

Female

Reference

Reference

Reference

Reference

Male

0.78 (0.66, 0.94)

0.54 (0.44, 0.65)

0.56 (0.48, 0.66)

0.71 (0.59, 0.86)


Age

<16 years

Reference

17-18 years

1.01 (0.60, 1.72)

19+ years

0.57 (0.28, 1.16)


School year

1st

Reference

Reference

Reference

Reference

3rd

1.89 (2.54, 3.79)

1.54 (1.27, 1.87)

1.32 (1.11, 1.57)

1.03 (0.61, 1.74)

5th

3.10 (2.54, 3.79)

2.29 (1.84, 2.85)

1.70 (1.41, 2.04)

1.99 (0.97, 4.08)


Province of residence

Belluno

Reference

Reference

Reference

Reference

Verona

1.03 (0.77, 1.37)

0.76 (0.55, 1.04)

1.30 (0.98, 1.72)

1.04 (0.76, 1.41)

Vicenza

0.82 (0.59, 1.16)

0.61 (0.43, 0.87)

0.54 (0.40, 0.73)

0.90 (0.64, 1.28)

Padua

0.90 (0.68, 1.19)

0.92 (0.67, 1.26)

1.02 (0.78, 1.33)

1.07 (0.79, 1.45)

Venice

0.91 (0.67, 1.23)

0.76 (0.54, 1.06)

1.06 (0.79, 1.41)

1.07 (0.77, 1.47)

Treviso

0.91 (0.68, 1.22)

1.24 (0.88, 1.74)

1.00 (0.76, 1.33)

0.83 (061, 1.12)

Rovigo

0.63 (0.47, 0.85)

0.73 (0.54, 1.01)

0.84 (0.64, 1.10)

0.69 (0.51, 0.93)


No. of siblings

0

Reference

Reference

1

0.82 (0.65, 1.03)

0.87 (0.72, 1.06)

2+

0.63 (0.48, 0.82)

0.79 (0.63, 0.99)


Tattoo

Indifferent/not interested

Reference

Reference

Reference

Interested/keen to try

0.88 (0.73, 1.05)

1.11 (0.94, 1.32)

1.07 (0.88, 1.28)

Done

0.60 (0.42, 0.86)

1.02 (0.72, 1.43)

0.68 (0.48, 0.95)


Piercing

Indifferent/not interested

Reference

Reference

Reference

Interested/keen to try

0.91 (0.74, 1.12)

0.82 (0.67, 0.99)

0.86 (0.69, 1.07)

Done

1.03 (0.81, 1.30)

0.62 (0.50, 0.77)

0.37 (0.29, 0.46)


(1) = Knowledge of infectious disease risk. Model fitted on 2,678 complete observations

(2) = Knowledge of hygienic norms mandatory in tattoo parlours. Model fitted on 3,093 complete observations

(3) = Propensity to refer to a certified parlour to undergo body art. Model fitted on 3,341 complete observations

(4) = Propensity to seek medical advice in the event of complications related to body art. Model fitted on 3,341 complete observations

* ORs weighted for sex and age to make the results more representative of the adolescents of the Veneto Region aged 14 to 22 years

Cegolon et al. BMC Public Health 2010 10:73   doi:10.1186/1471-2458-10-73

Open Data