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Table 1 Mean numeric rating scale (NRS) of discomfort and ductal width on ultrasonography (US)

From: Therapeutic effect of intraductal saline irrigation in chronic obstructive sialadenitis

 InitialLastDifference
N R S
 Total (n = 33)6.0 ± 2.5*3.3 ± 2.6*2.7 ± 2.2
  Swelling (n = 20)5.9 ± 2.42.7 ± 2.53.2 ± 2.4
  Dry mouth (n = 13)6.1 ± 2.24.2 ± 2.41.9 ± 1.3
Width of duct on US (mm)
 Total (n = 33)1.63 ± 1.651.62 ± 1.640.00 ± 0.09
  Swelling (n = 20)2.39 ± 1.672.38 ± 1.650.00 ± 0.12
  Dry mouth (n = 13)0.51 ± 0.740.52 ± 0.750.01 ± 0.02
  1. *The effect of irrigation was statistically significant (p < 0.05) by Wilcoxon singed rank test