Variables

All

Acne persistence (N=32)

Without acne (N=15)

Odds Ratio (95% Confidence interval)

p

Age at treatment onset (Median)

16±2

16±2

16±3

-

0,18

Current age (Median)

23±2

23±3

22±2

-

0,40

Age at acne onset (Median)

13±2

12±2

14±2

-

0,46

Age of menarche (Median)

12±2

12±2

12±1

-

0,17

Body Mass Index (Median)

21±3

21±3

22±3

-

0,64

Family history of acne in women %(n)

30%(14)

34%(11)

20%(3)

2,10 (0,49 a 9,03)

0,50

Clinical grade at treatment onset %(n)

-

-

-

-

0,46

Regular use of cosmetics %(n)

45%(21)

38%(12)

60%(9)

0,40 (0,11 a 1,41)

0,15

Regular use of sunscreen %(n)

53%(25)

53%(17)

53%(8)

0,99 (0,29 a 3,39)

0,99

Current smoking %(n)

17%(8)

16%(5)

20%(3)

0,74 (0,15 a 3,61)

0,70

Irregular menses %(n)

13%(6)

16%(5)

7%(1)

2,69 (0,29 a 25,37)

0,65

Hormonal contraceptives use %(n)

72%(34)

63%(20)

93%(14)

0,11 (0,01 a 1,02)

0,04

*Used Mann-Whitney or Fisher exact tests
Table 1: Bivariate analysis of studied features of patients with or without acne persistence.*