Epidemiology and clinical characteristics of hospitalized patients with pandemic influenza A (H1N1) 2009 infections: the effects of bacterial coinfection

Table 1 Clinical and laboratory characteristics of hospitalized patients with pandemic influenza A (H1N1) 2009 infections

* Not assessed in children < 3 years (n = 44)
** A patient may have more than one comorbidity or complications
¶ Includes asthma (n- = 9), Chronic obstructive airway disease (n = 1) and bronchiectasis (n = 1)
Ψ Includes chronic myeloid leukemia (n = 1), acute myeloid leukemia (n = 1), meningioma of brain (n = 1)
¥ Includes autoimmune haemolytic anaemia (n = 1), idiopathic thrombocytopenia purpura (n = 1)
£Includes cardiovascular disease (n = 2), immunosuppressives (n = 2), hypothyroidism (n = 1), stroke (n = 1)
^® Includes liver impairment (n = 12), renal impairment (n = 4) septic shock (n = 2) and ARDS (n = 2).
Ω Includes bacterial (n = 14), viral (n = 3). The sites for isolation of 9 non-Mycoplasma bacteria: (blood = 2, sputum = 3, nasopharyngeal aspirate = 3, bronchoalveolar lavage = 2)
^© Established values in our laboratory, Adults: leukocytes 4-11 × 10⁹/L; neutrophils 2-7.5 × 10⁹/L; lymphocyte 1.5-4 × 10⁹/L; Paediatrics: age-dependent
ALF: abnormal liver function (n = 41) (raised alanine aminotransferase/aspartate aminotransferase or both)
ARF: abnormal renal function (n = 42) (raised creatinine)

ISSN: 1743-422X