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Table 1 Association with HAV infection and selected socio demographic characteristics of the participants

From: Risk factors for viral hepatitis A infection in Gampaha District, Sri Lanka: an unmatched case control study

Socio demographic characteristicsCases (N = 252) n (%)Controls (N = 252) n (%)OR (95%CI)p value
Age2.02 (1.3–3.1) 
  > 13 years213 (84.5)184 (73.0) 
  ≤ 13 years39 (15.5)68 (27.0)0.002
Sex
 Male141 (56.0)99 (39.3)1.9 (1.38–2.8) 
 Female111 (44.0)153 (60.7)0.001
Marital Status
 Unmarried132 (52.4)192 (76.2)0.36 (0.24–0.53) 
 Married115 (45.6)60 (23.8)<  0.001
Religion
 Buddhism250 (99.2)219 (86.9)18.8 (4.46–79.4) 
 Catholic2 (0.8)33 (13.1)<  0.001
Ethnicity
 Sinhala252 (100.0)246 (97.6)2.02 (1.85–2.21) 
 Tamil0 (0.00)6 (2.4)0.01
Family income
  < 20,000 LKR169 (85.8)184 (73.0)2.23 (1.37–3.63) 
  ≥ 20,000 LKR28 (14.2)68 (27.0)0.001
Highest level of education
 Up to O/L182 (76.5)188 (74.6)1.10 (0.73–1.67) 
 Above O/L56 (23.5)64 (25.4)0.63
Occupation
 Other154 (61.1)221 (87.7)0.22 (0.14–0.36) 
 Paid worker/Retired98 (38.9)31 (12.3)0.001
 Urban101 (40.1)36 (14.3)4.01 (2.60–6.19) 
 Rural151 (59.9)216 (85.7)<  0.001
Number of family members sharing the household
  ≥ 5 members56 (22.2)104 (41.3)0.41 (0.28–0.60) 
  < 5 members196 (77.8)148 (58.7)<  0.001
Family members sharing the toilet
  ≥ 5 members137 (54.4)179 (71.0)0.49 (0.34–0.70) 
  < 5 members115 (45.6)73 (29.0)< 0.001
Out visits from Gampaha
 Yes34 (13.5)152 (60.3)0.10 (0.06–0.16) 
 No218 (86.5)100 (39.7)<  0.001
Travelled abroad
 Yes0 (0.0)42 (16.7)0.45 (0.41–0.50) 
 No252 (100)210 (83.3)<  0.001
  1. OR odds ratio, CI confidence interval