Table 1

Demographic characteristics of the study population
Demographic characteristics Case patients n=86 Controls n=287 OR CI 95% P value
Mean SD Mean SD
age in years 39.2 (± 13.6) 37.6 (± 12.4) 0.97 1.6-4.8 0.3
No. % No. %
Age groups:
< 20 2 2 8 3 0.8 0.1-4.3 0.8
20-29 23 27 77 27 1 0.6-1.8 0.9
30-39 19 22 82 28 0.7 0.4-1.3 0.3
40-49 22 26 65 23 1.2 0.7-2.1 0.7
50-59 14 16 42 15 1.1 0.6-2.3 0.7
60-69 6 7 13 4 1.6 0.5-4.7 0.4
Male 51 59 164 57 1.1 0.7-1.8 0.7
*Marital status
Single 19 22 81 28 0.7 0.4-1.3 0.3
Married 67 78 205 72 1.4 0.8-2.6 0.2
**Education
Illiterate 63 81 155 56 2.3 1.3-4.1 0.001
Educated 15 19 121 44 0.3 0.3-0.6 0.0000
Occupation
Worker 17 20 60 20 0.9 0.5-1.8 0.8
Soldier 2 2 0 0 NA NA NA
Student 2 2 5 2 1.3 0.2-8 0.7
Employee 6 7 42 15 0.4 0.2-1.1 0.06
Medical 0 0 13 5 NA NA NA
Unemployed 33 38 106 37 1.1 0.6-1.8 0.8
Others 26 30 61 21 1.6 0.9-2.9 0.08
History of chronic illnesses
Diabetes 10 12 32 12 1.1 0.5-2.3 0.9
Schistosomiasis 6 7 12 4 1.7 0.6-5.7 0.3
Hypertension 16 19 28 10 2.1 1.1-4.3 0.02
Hepatomegaly 5 6 0 0 NA NA NA
Spleenomegaly 2 2 0 0 NA NA NA
Cirrhosis 0 0 2 1 NA NA NA
Gall stones 21 24 39 14 2.1 1.1-3.9 0.02

* data missing for one control.

** data missing for 8 cases and 11 controls.

Kandeel et al.

Kandeel et al. BMC Infectious Diseases 2012 12:294   doi:10.1186/1471-2334-12-294

Open Data