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Table 1 Characteristics of the study population

From: Significantly impaired shoulder function in the first years of rheumatoid arthritis: a controlled study

Variable Patient group (n = 103) Reference group (n = 103) p value
Age (years) 47.1 (10.0) 47.0 (10.1) 0.97
49.0 (20.0; 60.0) 49.0 (21.0; 60.0)
Education    <0.0001
 <10 years 27 (26.5 %) 4 (3.9 %)  
 10–12 years 41 (40.2 %) 20 (19.6 %)  
 >12 years 34 (33.3 %) 78 (76.5 %)  
Dominant hand, right 93 (90.3 %) 101 (98.1 %) 0.033
Work hours per week 24.3 (16.8) 36.8 (6.9) <0.0001
30.0 (0.0; 40.0) 40.0 (0.0; 40.0)
n = 101 n = 96
Work status    <0.0001
 Full-time 80–100 % 49 (47.6 %) 89 (86.4 %)  
 Part-time, 1–79 % 26 (25.2 %) 11 (10.7 %)  
 Non-working, 0 % 28 (27.2 %) 3 (2.9 %)  
Workload    0.61
 Heavy load 3 (2.9 %) 1 (1.0 %)  
 Medium-heavy load 39 (38.2 %) 40 (40.0 %)  
 Light repetitive 9 (8.8 %) 4 (4.0 %)  
 Administration/computer 51 (50.0 %) 55 (55.0 %)  
Leisure-time activity (hours) 6.34 (4.11) 8.52 (5.47) 0.0032
6.00 (0.00; 20.00) 7.00 (1.00; 26.00)
n = 97 n = 103
  1. For categorical variables, number (percentage) is presented. For continuous variables, mean (standard deviation) or median (minimum; maximum) per participant is presented