The Usefulness of Clinical-Practice-Based Laboratory Data in Facilitating the Diagnosis of Dengue Illness
Table 2
Laboratory data of the included patients.
Variable
Overall dengue cases (A) ()
(A versus D)
Dengue fever cases (B) ()
(B versus D)
Dengue hemorrhagic cases (C) ()
(C versus D)
Nondengue cases1 (D) ()
Leukopenia (WBC < cells/L), no. (%)
49 (40)
0.001
31 (54.4)
<0.001
18 (41.9)
0.049
25 (25)
Platelet count < 150.0 (×109 cells/L), no. (%)
100 (100)
<0.001
57 (100)
<0.001
43 (100)
<0.001
71 (71)
Platelet count < 100.0 (×109 cells/L), no. (%)
97 (97)
<0.001
54 (94.7)
<0.001
43 (100)
<0.001
30 (30)
Prolonged APTT,2
(%)
61/68 (89.7)
0.001
33/36 (91.7)
0.006
28/32 (87.5)
0.030
26/41 (63.4)
Prolonged PT,3
(%)
1/68 (1.5)
0.023
0/37
0.055
1/31 (3.2)
0.217
5/39 (12.8)
AST > 40 U/L (normal value, < 40 U/L), (%)
68/79 (86.1)
<0.001
34/44 (77.3)
<0.001
34/35 (97.1)
<0.001
27/64 (42.2)
ALT > 40 U/L (normal value, < 40 U/L), (%)
49/65 (75.4)
<0.001
24/37 (64.9)
0.006
25/28 (89.3)
<0.001
19/55 (34.5)
Abbreviations: APTT: activated partial thromboplastin time; PT: prothrombin time; AST: aspartate aminotransferase; ALT: alanine aminotransferase; : no. of patients/no. of patients with data available.
1See footnote in Table 1 for details.
2Prolonged APTT was defined as an increased APTT value > 20% of the control value.
3Prolonged PT was defined as an increased PT value > 3 seconds than that of control.
