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Accuracy of detection of five auscultatory sounds by stethoscope brands I, II, and III
| Condition | Brand of stethoscope
|
χ2 | P-value | ||
|---|---|---|---|---|---|
| I (n=84), # correct (%) |
II (n=84), # correct (%) |
III (n=84), # correct (%) |
|||
| Crackles | 47 (56.0) | 40 (47.6) | 59 (70.2) | 9.02 | 0.011 |
| Wheezing | 76 (90.5) | 68 (81.0) | 69 (82.1) | 3.46 | 0.177 |
| Stridor | 50 (59.5) | 66 (78.6) | 66 (78.6) | 10.13 | 0.006 |
| Systolic murmur | 66 (78.6) | 66 (78.6) | 66 (78.6) | 0.0 | 1.0 |
| Hyperdynamic bowel sounds | 62 (73.8) | 31 (36.9) | 32 (38.1) | 29.56 | <0.001 |
