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Table 2 Pain outcomes (averages and proportions) at different moments and compared between first-time and returning participants and between five breast volume stratifications

From: Pain-preventing strategies in mammography: an observational study of simultaneously recorded pain and breast mechanics throughout the entire breast compression cycle

  Attendance Total Stratification by breast volume
  First time Returning Very small Small Medium Large Very large
Average pain scores n = 43 n = 281 n = 324 n = 65 n = 65 n = 65 n = 64 n = 65
 Recollected from previous mammogram - 6.19 6.19 7.04 6.72 5.51 5.07 6.28
 At end of deformation phase 4.40 4.80 4.75 5.45 5.03 4.19 4.39 4.65
 At end of clamping phase 5.70 5.90 5.88 6.70 6.15 5.03 5.75 5.75
Proportions severe pain (NRS ≥ 7 )         
 At end of deformation phase .16 .24 .23 .32 .28 .15 .19 .22
 At end of clamping phase .51 .49 .50 .58 .55 .34 .52 .49
Proportions moderate pain (4 ≤ NRS < 7 )         
 1 day after mammogram .05 .15 .11 .13 .13 .06 .17 .18
 2 days after mammogram .05 .05 .04 .03 .08 .02 .03 .10
 3 days after mammogram 0 .04 .03 .03 .03 0 0 .10
 4 days after mammogram 0 .01 .01 .03 0 0 0 0
 5 days after mammogram 0 0 0 0 0 0 0 0