Skip to main content

Table 2 Physical activity of ankylosing spondylitis patients (with complete data) included in the reliability study

From: Daily physical activity in ankylosing spondylitis: validity and reliability of the IPAQ and SQUASH and the relation with clinical assessments

  First assessment Second assessment ICC 95% confidence interval
IPAQ (MET-minutes/week) (n = 32)     
   Total activity score 3,849 (1,470 to 8,132) 4,349 (2,120 to 7,508) 0.83* 0.68 to 0.91
   Work activity score 0 (0 to 3,710) 50 (0 to 3,197) 0.80* 0.63 to 0.90
   Transport activity score 653 (284 to 1,607) 737 (209 to 1,589) 0.88* 0.77 to 0.94
   Household and garden activity score 580 (53 to 1,481) 245 (90 to 1,406) 0.60* 0.33 to 0.79
   Leisure time activity score 657 (195 to 1,718) 678 (111 to 1,832) 0.73* 0.52 to 0.86
SQUASH (n = 33)     
   Total activity scorea 5,760 (3,360 to 6,890) 5,600 (3,715 to 7,540) 0.89* 0.79 to 0.95
   Work and school activity score 1,080 (0 to 4,440) 600 (0 to 4,680) 0.88* 0.77 to 0.94
   Commuting activity score 0 (0 to 341) 0 (0 to 438) 0.48* 0.17 to 0.70
   Household activity score 900 (420 to 1,815) 840 (240 to 1,635) 0.77* 0.59 to 0.88
   Leisure-time and sports activity score 1,350 (775 to 1,795) 1,410 (480 to 2,635) 0.87* 0.76 to 0.93
  1. Data are presented as median (interquartile range). No significant differences were found between the first and second assessments of the physical activity questionnaires. ICC, intraclass correlation; IPAQ, International Physical Activity Questionnaire; MET, metabolic equivalent; SQUASH, Short QUestionnaire to Assess Health-enhancing physical activity. aSQUASH total activity score was normally distributed with mean 5,617 (standard deviation ± 3,233) and 5,808 (standard deviation ± 3,825) at the first and second assessment, respectively. *Statistically significant intraclass correlation (P < 0.001).