Volume 17, Number 5—May 2011
Research
Babesiosis in Lower Hudson Valley, New York, USA
Julie T. Joseph
, Sumith S. Roy, Navid Shams, Paul Visintainer, Robert B. Nadelman, Srilatha Hosur, John Nelson, and Gary P. Wormser
, Sumith S. Roy, Navid Shams, Paul Visintainer, Robert B. Nadelman, Srilatha Hosur, John Nelson, and Gary P. WormserTable 2
Selected demographic and clinical features and laboratory test results for 18 adults with babesiosis hospitalized at Westchester Medical Center, Valhalla, New York, USA, 2002–2009*
| Characteristic | Value |
|---|---|
| Mean age, y, ± SD (range) | 54.1 ± 20.1 (21–95) |
| Male, no. (%) | 13 (72.2) |
| Mean time from symptom onset to diagnosis, d, ± SD (range) | 13.6 ± 9.28 (3–33) |
| Recollection of tick bite within 30 d, no. (%), n = 16 | 3 (18.8) |
| Temperature >38°C, no. (%) | 15 (83.3) |
| Splenomegaly, no. (%), n = 13 | 2 (15.4) |
| Mean initial parasitemia, %, ± SD (range), n = 17† | 4.49 ± 4.57 (0.01–14) |
| Mean highest level of parasitemia, %, ± SD (range), n = 17† | 5.34 ± 5.79 (0.05–18) |
| Mean initial leukocyte count × 109/L,± SD (range), n = 17 | 7.2 ± 3.38 (3.2–15.4) |
| Lymphocyte count <1,000 ×106/L, no. (%), n = 12 | 5 (41.6) |
| Mean hemoglobin minimum, g/dL,± SD (range) | 8.2 ± 1.98 (3.5–11.1) |
| Mean platelets minimum, × 109/L, ± SD (range) | 110.8 ± 139.2 (19–615) |
| Platelets minimum <150 × 109/L, no. (%) | 16 (88.9) |
| Mean initial erythrocyte sedimentation rate, mm/h,± SD (range), n = 9 | 76.7 ± 33.3 (32–138) |
| Mean initial lactate dehydrogenase, U/L, ± SD (range), n = 15 | 931.5 ± 562 (229–2074) |
| Mean initial aspartate aminotransferase, U/L, ± SD (range) | 237.7 ± 366.9 (19–1450) |
| Initial aspartate aminotransferase >30 U/L, no. (%) | 14 (77.8) |
| Mean initial alanine aminotransferase, U/L, ± SD (range) | 110.2 ± 111 (16–433) |
| Initial alanine aminotransferase >40 U/L, no. (%) | 13 (72.2) |
| Mean initial total bilirubin, mg/dL, ± SD (range) | 3.4 ± 5.59 (0.4–24.6) |
| Initial total bilirubin >1.2 mg/dL, no. (%) | 10 (55.6) |
| Mean serum sodium minimum, meq/L, ± SD (range), n = 17 | 127.6 ± 10.1 (94–139) |
| Mean creatinine maximum , ng/mL, ± SD (range), n = 17 | 1.3 ± 0.59 (0.7–2.7) |
*Data were obtained from all 18 patients unless otherwise indicated.
†For 1 patient with a positive smear, the level of parasitemia is unknown.
