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Table 4 Frequency distribution of the remission of symptoms (symptom score = 0), and tests of regression models for the treatment groups and follow-up as predictor variables

From: Postsurgical oral symptoms after insertion of one or two implants for mandibular overdentures: short-term results of a randomized clinical trial

Follow-up Pain in the surgical area Pain when chewing Swelling Bleeding Unpleasantness
1-IOD 2-IOD 1-IOD 2-IOD 1-IOD 2-IOD 1-IOD 2-IOD 1-IOD 2-IOD
1-day 3 (13.0) 2 (8.3) 4 (17.4) 5 (20.8) 13 (56.5) 6 (25.0) 11 (47.8) 9 (37.5) 3 (13.0) 3 (12.5)
7-day 5 (21.7) 7 (29.2) 5 (21.7) 7 (29.2) 17 (73.9) 14 (58.3) 20 (87.0) 18 (75.0) 6 (26.1) 8 (33.3)
21-day 15 (65.2) 12 (50.0) 11 (47.8) 11 (45.8) 21 (91.3) 21 (87.5) 22 (95.7) 24 (100) 10 (43.5) 11 (45.8)
p-valuea 0.616 0.780 0.056 0.427 0.762
  1. aTests of model effects for the difference between groups (1-IOD vs 2-IOD). All p-values for the effects of the follow-up assessments were < 0.001