Research Article

Incidence and Prognostic Factors for Legionnaires' Disease in Denmark 1993–2006

Table 2

Number and proportion of patients in each comorbidity group for different exposure categories; notified, confirmed cases of LD, Denmark 1993–2006, 𝑁 = 1 1 1 6 .

Comorbidity groupAll patients number (%)Travel associated number (%)Hospital acquired number (%)Community acquired, nontravel number (%)

Alcohol related diagnoses45 (4.0%)8 (2.7%)7 (4.2%)30 (4.6%)
Cardiovascular diseases332 (30%)65 (22%)84 (51%)183 (28%)
Pulmonary diseases376 (34%)74 (25%)67 (40%)235 (36%)
Immune deficiency diseases50 (4.5%)9 (3.0%)21 (13%)20 (3.1%)
Infectious diseases1153 (14%)29 (10%)38 (23%)96 (13%)
Neurological diseases42 (3.8%)7 (2.3%)10 (6.0%)25 (3.9%)
Renal diseases205 (18%)42 (14%)46 (28%)117 (18%)
Gastroenterological diseases193 (17%)39 (13%)53 (32%)101 (16%)
Diabetes104 (9.3%)32 (11%)13 (7.8%)59 (9.1%)
Malignancy150 (13%)18 (6.0%)57 (34%)75 (12%)
Others2230 (21%)31 (10%)67 (40%)132 (20%)

1Excluding Legionnaires’ disease.
2Rheumatologic diseases, endocrine diseases (except diabetes), nonmalignant haematological diseases.