Table 4

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

a Scores ranged from ‘very difficult’ (lowest score) to ‘very easy’ (highest score).

b Number of missing values per competence and domain before multiple imputation.

van der Heide et al.

van der Heide et al. BMC Public Health 2013 13:179   doi:10.1186/1471-2458-13-179

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