Volume 21, Number 8—August 2015
Research
Differentiation of Acute Q Fever from Other Infections in Patients Presenting to Hospitals, the Netherlands1
Stephan P. Keijmel
, Elmer Krijger, Corine E. Delsing, Tom Sprong, Marrigje H. Nabuurs-Franssen, and Chantal P. Bleeker-Rovers
, Elmer Krijger, Corine E. Delsing, Tom Sprong, Marrigje H. Nabuurs-Franssen, and Chantal P. Bleeker-Rovers
Table 3
Physical examination results for patients with acute Q fever and control group with negative serologic results for Q fever, the Netherlands*
| Characteristic | Study group, n = 82 | Control group, n = 52 | p value |
|---|---|---|---|
| Dyspnea | 13/73 (18) | 18/41 (44) | 0.03† |
| Abnormal heart sounds | 1/80 (1) | 0/51 (0) | NS† |
| Cardiac murmur | 11/80 (14) | 4/50 (8) | NS† |
| Decreased breath sounds | 6/78 (8) | 7/46 (15) | NS† |
| Bronchial breath sounds | 9/64 (14) | 5/37 (14) | NS† |
| Crackles | 36/76 (47) | 19/43 (44) | NS† |
| Rhonchi | 3/68 (4) | 9/41 (22) | 0.005† |
| Palpable liver | 1/69 (1) | 1/39 (3) | NS† |
| Palpable spleen | 0/68 (0) | 0/36 (0) | NS† |
| Exanthema | 2/9 (22) | 0/6 (0) | NS† |
| Lymphadenopathy | 2/27 (7) | 2/21 (10) | NS† |
| Temperature, °C (no. patients) | 38.4 (67) | 38.3 (48) | NS‡ |
| Heart rate, beats/min (no, patients) | 93 (73) | 91 (50) | NS‡ |
| Systolic blood pressure, mm Hg, (no. patients) | 134 (73) | 138 (49) | NS‡ |
| Respiratory rate, breaths/ min (no. patients) | 25 (24) | 25 (21) | NS‡ |
| Saturation, % oxygenation (no. patients)§ | 97 (57) | 95 (34) | 0.022‡ |
*Values are no positive/no. tested (%) unless otherwise indicated. NS, not significant.
†By χ2 test.
‡By Student t-test.
§Saturation without oxygen.
1Preliminary results from this study were presented as a poster (P1851) at the 22th annual European Congress of Clinical Microbiology and Infectious Diseases, March 31–April 3, 2012, London, UK.
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