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Table 4 Descriptive statistics per health literacy competence and domain (N = 925) a

From: Health literacy of Dutch adults: a cross sectional survey

Competence domain Items Missings (n)b Mean (SD) Mean per item (SD) Mean per item per quartile
      25 50 75
Accessing 11 231 35.2 (5.2) 3.2 (0.5) 2.6 3.2 3.7
  Healthcare 3 82 9.7 (1.8) 3.2 (0.6) 2.7 3.3 3.4
  Disease prevention 6 122 20.3 (3.1) 3.4 (0.5) 2.8 3.4 4.0
  Health promotion 2 118 5.1 (1.7) 2.6 (0.8) 1.7 2.5 3.9
Understanding 11 157 36.8 (4.9) 3.3 (0.5) 2.8 3.4 3.9
  Healthcare 4 58 13.5 (2.1) 3.4 (0.5) 2.8 3.4 3.9
  Disease prevention 3 29 10.8 (1.5) 3.6 (0.5) 3.0 3.7 4.0
  Health promotion 4 108 12.5 (2.6) 3.1 (0.7) 2.4 3.2 3.9
Appraising 12 219 36.7 (5.9) 3.1 (0.5) 2.5 3.1 3.7
  Healthcare and prevention 9 201 27.0 (4.8) 3.0 (0.5) 2.4 3.0 3.6
  Health promotion 3 47 9.8 (1.9) 3.3 (0.6) 2.7 3.5 4.0
Applying 9 196 28.9 (4.2) 3.2 (0.5) 2.7 3.2 3.8
  Healthcare 3 16 10.8 (1.5) 3.6 (0.5) 3.0 3.7 4.0
  Disease prevention 2 64 5.7 (1.7) 2.9 (0.8) 1.8 2.8 3.8
  Health promotion 4 155 12.4 (2.7) 3.1 (0.7) 2.3 3.1 3.8
  1. a Scores ranged from ‘very difficult’ (lowest score) to ‘very easy’ (highest score).
  2. b Number of missing values per competence and domain before multiple imputation.