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. 2019 Jul 1;12:481–487. doi: 10.2147/CCID.S195191

Table 3.

Results of the multivariate analysis of the variables associated with acne

Variables (n=516) OR (95% CI) p-value
Age, years 1.11 (1.04–1.18) 0.001
Physical exercise
 No/occasionally 1*
 Regularly 0.49 (0.29–0.84) 0.009
On a diet
 No 1
 Yes 0.31 (0.13–0.74) 0.009
Sibling history of acne
 No 1
 Yes 4.13 (2.55–6.69) <0.001
Whole milk
 <3 days/week 1
 ≥3 days/week 2.36 (1.39–4.01) 0.002
Low fat milk
 <3 days/week 1
 ≥3 days/week 1.95 (1.10–3.45) 0.021
Egg
 <3 days/week 1
 ≥3 days/week 1.95 (1.20–3.17) 0.007
Fresh vegetables
 <3 days/week 1
 ≥3 days/week 0.54 (0.31–0.92) 0.068
Chicken
 <3 days/week 1
 ≥3 days/week 0.27 (0.15–0.49) <0.001
Chocolate
 <3 days/week 1
 ≥3 days/week 2.19 (1.36–3.53) 0.001
Potato chips
 <3 days/week 1
 ≥3 days/week 3.57 (2.20–5.80) <0.001

Note: *Reference groups.

Abbreviations: OR, odds ratio; CI, confidence interval.