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Table 3 Ultrasound characteristics

From: Influence of Inflammatory Polyarthritis on Quantitative Heel Ultrasound Measurements

Variable Men   Women  
  IP Non-IP   IP Non-IP  
  N = 52 N = 104   N = 87 N = 174  
  mean (SD) mean (SD) p value mean (SD) mean (SD) p value
Broadband ultrasound attenuation (dB/MHz) 85.8 (18.1) 91.1 (18.6) 0.09 70.6 (16.2) 69.3 (14.7) 0.52
Speed of sound (m/s) 1629.0 (47.6) 1644.0 (35.5) 0.03 1617.6 (40.3) 1624.5 (38.9) 0.18
  1. IP = inflammatory polyarthritis.