Table 2. Sensitivity, specificity and positive and negative related values of the defining characteristics of Ineffective Breathing Pattern. Rio Branco, AC, Brazil, 2015-2016.
| Defining characteristics | Sensitivity (%) | Specificity (%) | Related value (%) | |
|---|---|---|---|---|
|
| ||||
| Positive | Negative | |||
| Reduced vesicular murmurs | 92.6 (84.6 - 97.2) | 97.4 (86.5 - 99.9) | 98.7 (92.9-100.0) | 86.4 (72.6 - 94.8) |
| Auscultation with adventitious sounds | 71.6 (60.5 - 81.1) | 100.0 (91.0 - 100.0) | 100 (93.8-100.0) | 62.9 (49.7 - 74.8) |
| Abnormal breathing pattern | 97.5 (91.4 - 99.7) | 7.7 (1.6 - 20.9) | 68.7 (59.4-77.0) | 60.0 (14.7 - 94.7) |
| Decreased inspiratory pressure | 100.0 (95.5- 100) | 2.6 (0.1 - 13.5) | 68.1 (58.9-76.3) | 100.0 (2.5-100.0) |
| Decreased expiratory pressure | 100.0 (-)* | 0.0 (-)* | 67.5 (-) | - |
| Changes in respiratory depth | 40.7 (29.9 - 52.2) | 100.0 (91.0 - 100.0) | 100 (89.4 -100.0) | 44.8 (34.1 - 55.9) |
| Dyspnea | 33.3 (23.2 - 44.7) | 100.0 (91.0 - 100.0) | 100.0 (87.2-100.0) | 41.9 (31.8 - 52.6) |
| Cough | 29.6 (20.0 - 40.8) | 100.0 (91.0 - 100.0) | 100 (85.8 - 100.0) | 40.6 (30.7 - 51.1) |
| Tachypnea | 28.4 (18.9 - 39.5) | 100.0 (91.0 - 100.0) | 100.0 (85.2-100.0) | 40.2 (30.4 - 50.7) |
| Use of accessory muscles to breathe | 24.7 (15.8 - 35.5) | 100.0 (91.0 - 100.0) | 100.0 (83.2-100.0) | 39.0 (29.4 - 49.3) |
| Altered chest excursion | 9.9 (4.4 - 18.5) | 100.0 (91.0 - 100.0) | 100.0 (63.1-100.0) | 34.8 (26.1 - 44.4) |
| Increased anteroposterior chest diameter | 6.2 (2.0 - 13.8) | 100.0 (91.0 - 100.0) | 100.0 (47.8-100.0) | 33.9 (25.3 - 43.3) |
| Nose wing beats | 6.2 (2.0 - 13.8) | 100.0 (91.0 - 100.0) | 100.0 (47.8-100.0) | 33.9 (25.3 - 43.3) |
| Assumption of a three-point position | 6.2 (2.0 - 13.8) | 100.0 (91.0 - 100.0) | 100.0 (47.8-100.0) | 33.9 (25.3 - 43.3) |
| Decreased minute ventilation | 2.5 (0.3 - 8.6) | 100.0 (91.0 - 100.0) | 100.0 (15.8-100.0) | 33.1 (24.7 - 42.3) |
| Pursed-lip breathing | 2.5 (0.3 - 8.6) | 100.0 (91.0 - 100.0) | 100.0 (15.8-100.0) | 33.1 (24.7 - 42.3) |
| Orthopnea | 1.2 (0.0 - 6.7) | 100.0 (91.0 - 100.0) | 100.0 (2.5 - 100.0) | 32.8 (24.4 - 42.0) |
| Prolonged expiratory phase | 1.2 (0.0 - 6.7) | 100.0 (91.0 - 100.0) | 100.0 (2.5 - 100.0) | 32.8 (24.4 - 42.0) |
| Bradypnea | 0.0 (-)* | 100.0 (-)* | - | 32.5 (-)* |
*(-) = it was not possible to calculate because the defining characteristic did not present one of the levels