Volume 11, Number 12—December 2005
Research
Viral Load Distribution in SARS Outbreak
Table
Demographic factors on admission of patients living in E block and non-E block of Amoy Gardens, Hong Kong*
Factor | E block patients (n = 53) | Non-E block patients (n = 26) | p value |
---|---|---|---|
Age, y, mean (SD) | 40.6 (11.9) | 37.1 (10.6) | 0.21† |
Male:female ratio | 25:28 | 13:13 | 0.81‡ |
Duration of symptoms to admission (days), mean (SD) | 2.4 (1.2) | 2.5 (1.2) | 0.72† |
Coexisting conditions including chronic hepatitis B, no. (%) | 11 (19.6) | 8 (30.8) | 0.33‡ |
Chronic hepatitis B infection, no. (%) | 5 (9.4) | 5 (19.2) | 0.22‡ |
Abnormal chest radiograph results, no. (%) | 38 (71.7) | 21 (80.8) | 0.38‡ |
Multilobar involvement on initial chest radiograph, no. (%) | 13 (24.5) | 5 (19.2) | 0.60‡ |
Day of collection of nasopharyngeal specimens after onset of symptoms, mean (SD) | 3.2 (1.2) | 3.3 (1.8) | 0.74† |
Quantitative RT-PCR result of nasopharyngeal specimens (log10 copies/mL), median (IQR) | 5.09 (3.50–6.59) | 0 (0–3.57) | 0.008§ |
Hemoglobin (g/dL), mean (SD) | 13.3 (1.7) | 13.8 (1.4) | 0.24† |
Neutrophil count (× 109/L), mean (SD) | 5.2 (2.0) | 5.3 (2.0) | 0.77† |
Lymphocyte count (× 109/L), mean (SD) | 0.92 (0.6) | 0.86 (0.4) | 0.65† |
Sodium (mmol/L), mean (SD) | 138 (3) | 138 (3) | 0.91† |
Potassium (mmol/L), mean (SD) | 3.9 (3.6) | 3.9 (3.0) | 0.31† |
Urea (mmol/L), mean (SD) | 4.4 (1.4) | 4.1 (1.0) | 0.34† |
Creatinine (μmol/L), mean (SD) | 88 (16) | 85 (12) | 0.35† |
Alanine aminotransferase (IU/L), mean (SD) | 41 (49) | 31 (19) | 0.31† |
Albumin (g/L), mean (SD) | 40 (3) | 40 (3) | 0.85† |
Creatinine kinase (IU/L), mean (SD) | 197 (222) | 190 (186) | 0.89† |
Lactate dehydrogenase (IU/L), mean (SD) | 437 (190) | 398 (107) | 0.47† |
*SD, standard deviation; IQR, interquartile ratio; RT-PCR, reverse transcription–polymerase chain reaction.
†By Student t test.
‡By chi-square test.
§By Mann-Whitney U test.