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Table 2 Distribution of item scores according to sample, number (%), and comparison of scores between modes of survey

From: General population norms for the EQ-5D-3 L in Norway: comparison of postal and web surveys

  Postal survey Web survey P a Odds ratio 95% CI P
n 1131   977      
Mobility      0.66 0.97b (0.74 to 1.28) 0.84
 No problems 968 (86) 831 (85)     
 Some problems 163 (14) 145 (15)     
 Confined to bed   1 (0)     
Self-care      0.94 0.81b (0.44 to 1.48) 0.49
 No problems 1102 (97) 954 (98)     
 Some problems 28 (3) 23 (2)     
 Unable to wash or dress 1 (0)      
Usual activities      0.14 1.08c (0.85 to 1.38) 0.52
 No problems 949 (84) 789 (81)     
 Some problems 172 (15) 175 (18)     
 Unable to perform 10 (1) 13 (1)     
Pain/Discomfort      0.002 1.25c (1.04 to 1.50) 0.019
 No pain or discomfort 647 (57) 495 (51)     
 Moderate pain or discomfort 444 (39) 426 (44)     
 Extreme pain or discomfort 40 (4) 56 (6)     
Anxiety/Depression      0.62 0.88c (0.70 to 1.10) 0.26
 Not anxious or depressed 893 (79) 766 (78)     
 Moderately anxious or depressed 228 (20) 198 (20)     
 Extremely anxious or depressed 10 (1) 13 (1)     
  1. aFisher’s exact test; bLogistic regression: OR for web compared to postal of scoring Moderate/extreme vs. Mild, adjusted for age, sex and education;
  2. cOrdinal logistic regression: OR for web compared to postal of scoring in a higher category on the scale, adjusted for age, sex and education