Table 2. Changes in pain intensities, duration of pain, medication intake for pain, and pain interference.
| Measures related to tooth pain | Timing of Measure | p-value | ||
|---|---|---|---|---|
|
| ||||
| Pre-operative | Post-operative | Change in pain-related measure+ | ||
| Pain Intensity Measures | ||||
|
| ||||
| Mean (SD) of worst pain intensity over the past week | 5.3 (3.8) | 3.0 (3.2) | -2.3 (4.4) | <0.0001* |
| Number missing | 16 | 56 | 69 | |
|
| ||||
| Worst pain intensity over the past week was ≥7 on 0-10 scale: n (%) | 322 (50) | 124 (19) | -31% | <0.0001† |
| Number missing | 69 | 69 | 69 | |
|
| ||||
| Worst pain intensity over the past week was 0 on 0-10 scale: n (%) | 154 (24) | 250 (39) | 15% | <0.0001† |
| Number missing | 69 | 69 | 69 | |
|
| ||||
| Mean (SD) of average pain intensity over the past week | 4.1 (3.2) | 1.9 (2.3) | -2.2 (3.5) | <0.0001* |
| Number missing | 15 | 56 | 68 | |
|
| ||||
| Average pain intensity over the past week was ≥7 on 0-10 scale: n (%) | 175 (27) | 37 (6) | -22% | <0.0001† |
| Number missing | 68 | 68 | 68 | |
|
| ||||
| Average pain intensity over the past week was 0 on 0-10 scale: n (%) | 162 (25) | 284 (44) | 19% | <0.0001† |
| Number missing | 68 | 68 | 68 | |
|
| ||||
| Mean (SD) current pain intensity | 2.8 (2.9) | 0.9 (1.8) | -1.8 (3.1) | <0.0001* |
| Number missing | 14 | 56 | 66 | |
|
| ||||
| Current pain intensity was ≥7 on 0-10 scale: n (%) | 92 (14) | 20 (3) | -11% | <0.0001† |
| Number missing | 66 | 66 | 66 | |
|
| ||||
| Current pain intensity was 0 on 0-10 scale: n (%) | 231 (36) | 451 (70) | 34% | <0.0001† |
| Number missing | 66 | 66 | 66 | |
|
| ||||
| Duration of Pain and Medication Intake | ||||
|
| ||||
| Mean (SD) days with tooth pain in past week | 3.6 (2.7) | 2.1 (2.4) | -1.5 (3.4) | <0.0001* |
| Number missing | 9 | 61 | 69 | |
|
| ||||
| Medication was taken for pain in past week: n (%) yes | 380 (60) | 371 (58) | -1.4% | 0.55† |
| Number missing | 71 | 71 | 71 | |
|
| ||||
| Pain interference | ||||
|
| ||||
| Interfered with daily activities in the past week, 0-10/10: mean (SD) | 1.8 (2.6) | 0.9 (2.0) | -0.9 (2.9) | <0.0001* |
| Number missing | 10 | 58 | 67 | |
|
| ||||
| Interfered with recreational activities in the past week, 0-10/10: mean (SD) | 1.6 (2.6) | 0.7 (1.9) | -0.8 (2.7) | <0.0001* |
| Number missing | 11 | 58 | 67 | |
|
| ||||
| Interfered with work activities in the past week, 0-10/10: mean (SD) | 1.4 (2.5) | 0.6 (1.7) | -0.8 (2.6) | <0.0001* |
| Number missing | 12 | 58 | 68 | |
|
| ||||
| Mean (SD) of summary rating of interference in daily life in the past week, on a scale of 0-10 | 1.6 (2.4) | 0.8 (1.8) | -0.8 (2.6) | <0.0001* |
| Number missing | 16 | 58 | 72 | |
|
| ||||
| Mean (SD) days pain interfered with daily life in the past week, 0-7/7: | 0.5 (1.2) | 0.4 (1.1) | -0.2 (1.4) | 0.0061* |
| Number missing | 12 | 68 | 78 | |
*
Assessed using a paired t-test
†
Assessed using McNemar's test
+
Calculations for changes in pain included patients with pre-operative and post-operative data
The signed rank test, a nonparametric analog to the paired t-test, was applied for confirmatory analyses. All results were similar and did not change the statistical significances observed (data not shown).