Table 1

Univariate analysis on (1) patients with fever vs. patients with normal temperature; (2) patients within clusters vs. non-cluster patients.

(1) Patients with fever vs. patients with normal temperature (n = 1066)


Fever

(n = 448)

Normal temperature

(n = 618)

Odds ratio (95% confidence interval)


Age (mean ± SD)

51.7 ± 31.7

60.8 ± 25.7

-


Age ≤12 years (number, %)

87 (19.4%)

54 (8.7%)

2.52 (1.75, 3.62)


Age 13 years to 64 years (number, %)

166 (37.1%)

235 (38.0%)

0.96 (0.75, 1.23)


Age ≥65 years (number, %)

195 (43.5%)

329 (53.2%)

0.68 (0.53, 0.87)


RCHE* residents (number, %)

98 (21.9%)

106 (17.2%)

1.35 (1.00, 1.84)


Infections diagnosed (number, %)

209 (47.2%)

48 (7.8%)

10.55 (7.44, 14.95)


(2) Patients within clustersvs. non-cluster patients (all had fever, n = 448)


Cluster

(n = 171)

Non-cluster

(n = 277)

Odds ratio (95% confidence interval)


Age (mean ± SD)

56.2 ± 30.7

49.0 ± 32.0

-


Age ≤12 years (number, %)

27 (15.8%)

60 (21.7%)

0.68 (0.41, 1.12)


Age 13 years to 64 years (number, %)

63 (36.8%)

103 (37.2%)

0.99 (0.66, 1.46)


Age ≥65 years (number, %)

81 (47.4%)

114 (41.2%)

1.29 (0.88, 1.89)


RCHE* residents (number, %)

57 (33.3%)

41 (14.8%)

2.88 (1.82, 4.57)


Infections diagnosed (number, %)

85 (49.7%)

124 (44.8%)

1.20 (0.82, 1.76)


*RCHE: residential care homes for elderly.

Defined as 3 or more spatially associated patient-episodes with fever during each 3 consecutive days.

p-value < 0.05

Choi et al. BMC Public Health 2010 10:84   doi:10.1186/1471-2458-10-84

Open Data