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Table 3 The amount of sunscreen used and area of sunscreen coverage

From: Accuracy and adequacy of photoprotection in pediatric systemic lupus erythematosus patients, and the effect of education on photoprotection: a prospective study

Sunscreen application

First assessment

Second

assessment

p-value

Amount of sunscreen applied to the face (n)

 - ≥ 2 fingertip units

34

71

 < 0.001

Sunscreen coverage by anatomical facial site (n)

 - Hairline

12

12

 > 0.99

 - Forehead

68

89

 < 0.001

 - Ears

4

11

0.07

 - Periorbital

21

32

0.06

 - Nose

65

88

 < 0.001

 - Cheeks

72

90

 < 0.001

 - Nasolabial

70

89

 < 0.001

 - Perioral

68

88

 < 0.001

Sunscreen coverage of the sun exposed areas of the body (n)

 - Neck

38

66

 < 0.001

 - Forearm

72

84

0.02

 - Dorsum of hands

17

29

0.008

 - Legs

70

89

 < 0.001

 - Dorsum of feet

12

20

0.06

Percentage of skin surface covered, median (IQR)

43 (2–47)

45 (43–50)

 < 0.001

  1. Total sample size = 100, n = %