Table 2

Distribution of potential confounders across quintiles of exposures

Wrist angular velocity, o/s0−<20th
percentile
3.5−≤7.9
20th−≤40th percentile
7.9−≤11.6
40th−≤60th percentile
11.6−≤14.2
60th−≤80th percentile
14.2−≤19.9
80th−≤100th percentile
19.9−≤31.8
Total
RT—total180 532.0120 773.893 176.162 684.4159 593.6616 759.8
 Men162 870.2119 461.992 688.817 889.761 889.6454 800.2
 Women17 661.71311.9487.344 794.897 704.0161 959.6
Mean age (IQR)43.1 (34.3–52.0)38.1 (27.8–47.8)40.1 (29.3–50.3)33.7 (24.5–41.2)38.5 (28.2–48.0)39.6 (29.1–49.4)
Educational level
 Unskilled*, %51.37.231.930.144.835.7
 Skilled, %41.491.462.565.625.253.4
 Higher, %3.00.81.31.58.83.5
 Unknown, %4.30.74.32.821.87.4
RT with rheumatoid arthritis651.7301.7204.1221.6549.31928.4
 Men553.0293.9201.172.5107.31227.7
 Women98.77.83.1149.1442.1700.7
RT with fractures†660.9686.7451.6156.8355.42311.5
 Men618.5682.8451.699.8173.22026.9
 Women42.42.9057.0182.2284.5
Wrist force0−<20th
percentile
1.00−≤1.73
20th−≤40th percentile
1.73−≤2.50
40th−≤60th percentile
2.50−≤3.58
60th−≤80th percentile
3.58−≤4.15
80th−≤100th percentile
4.15−≤4.40
Total
RT—total79 804.2202 943.3125 479.1105 889.6102 643.6616 759.8
 Men21 414.7168 765.557 701.6104 564.5102 354.0454 800.2
 Women58 389.534 177.967 777.61325.1289.6161 959.6
Mean age (IQR)36.5 (26.1–45.6)41.4 (31.6–50.9)39.8 (30.0–49.8)40.3 (30.0–50.0)37.5 (27.1–47.1)39.6 (29.1–49.4)
Educational level
 Unskilled*, %30.951.744.925.49.235.7
 Skilled, %61.539.523.970.988.353.4
 Higher, %5.42.88.31.20.83.5
 Unknown, %2.36.022.92.62.77.4
RT with rheumatoid arthritis304.0708.8427.9243.4244.31928.4
 Men74.0527.4148.0240.3238.01227.7
 Women230.0181.4279.93.16.3700.7
RT with fractures161.5715.5318.3461.4654.72311.5
 Men83.7636.9191.20.9654.72026.9
 Women77.878.6127.2460.50284.5
  • *Unskilled defined as elementary or high school.

  • †Fractures defined as with effect 2 years from date of diagnosis.

  • RT, risk time in years.