Table 3.

Logistic regression of signs and symptoms of DENV PCR+ cases (N = 37) among patients seen in a tertiary hospital, Manila, Philippines, November 2012 to December 2013

Presenting symptoms/signs/variables	B	SE	Wald	df	P value	Exp(B)
Fever	21.572	11,132.61	0	1	0.998	2.34E+09
Chills	0.745	0.573	1.688	1	0.194	2.11
Headache	−0.25	0.605	0.171	1	0.679	0.78
Runny nose	−0.681	0.607	1.255	1	0.263	0.51
Sore throat	0.448	0.627	0.51	1	0.475	1.57
Cough	0.257	0.48	0.287	1	0.592	1.29
Nausea	0.039	0.685	0.003	1	0.955	1.04
Eye pain	0.469	0.661	0.504	1	0.478	1.60
Vomiting	0.383	0.517	0.55	1	0.458	1.47
Loss of appetite	0.242	0.614	0.155	1	0.694	1.27
Abdominal pain	−0.551	0.534	1.066	1	0.302	0.58
Muscle/body pain	−0.402	0.725	0.307	1	0.579	0.67
Joint pain	0.177	0.768	0.053	1	0.818	1.19
Malaise/fatigue	0.288	0.666	0.187	1	0.666	1.33
Bleeding	0.134	0.659	0.041	1	0.839	1.14
Skin rash	−1.219	0.564	4.673	1	0.031*	0.30
Diarrhea	−0.818	0.794	1.061	1	0.303	0.44
Stiff neck	−19.954	40,192.97	0	1	1.000	0.00
Abnormal movement	−20.614	17,599.41	0	1	0.999	0.00
Dark urine	1.479	1.002	2.178	1	0.140	4.39
Jaundice	−21.276	40,192.97	0	1	1.000	0.00
Shortness of breath	0.313	1.287	0.059	1	0.808	1.37
Constant	−22.242	11,132.61	0	1	0.998	0.00

DENV = dengue virus; df = degrees of freedom; PCR = polymerase chain reaction; SE = standard error.

^*P value is significant since the P value is less than 0.05.