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Table 3 IgG seronegativity to VZV by demographic characteristics in the study sample aged 18 years and older, 2004

From: Seroprevalence of varicella-zoster virus and predictors for seronegativity in the Amsterdam adult population

  n VZV seronegative Univariable OR (95%) P-value
   n %   
Total 1,341 93 6.9 (5.6–8.4)   
Sex      0.84
 Male 619 44 7.1 1  
 Female 717 49 6.8 0.96 (0.6–1.5)  
Age category      0.52
 18–34 years 212 15 7.1 1  
 35–44 years 291 22 7.6 1.07 (0.5–2.1)  
 45–54 years 325 26 8.0 1.14 (0.6–2.2)  
 55–64 years 279 13 4.7 0.64 (0.3–1.4)  
 65 years and older 224 16 7.1 1.01 (0.5–2.1)  
 Age missing 10 1 10.0 -  
Ethnic origin      0.013
 Dutch 437 17 3.9 1  
 Surinamese or Antillean 89 6 6.7 1.79 (0.7–4.7)  
 Turkish 319 30 9.4 2.56 (1.4–4.7)  
 Moroccan 275 26 9.5 2.58 (1.4–4.8)  
 Other 211 14 6.6 1.76 (0.8–3.6)  
 Ethnic origin missing 10 0 0 -  
Generation
 Dutch 437 17 3.9 1  
 1st generation, Surinamese or Antillean 78 6 7.7 2.06 (0.8–5.4)  
 1st generation, Turkish 306 29 9.5 2.59 (1.4–4.8)  
 1st generation, Moroccan 262 25 9.5 2.61 (1.4–4.9)  
 Other 1st generation 189 14 7.4 1.98 (1.0–4.1)  
 2nd generation immigrants 59 2 3.4 0.87 (0.2–3.9)  
 Ethnic origin missing 10 0 0 -  
Immigration status      < 0.0001
 Autochthonous (born in the Netherlands) 516 19 3.7 0.36 (0.2–0.6)  
 Immigrated at age > 10 years 721 70 9.7 1  
 Immigrated at age ≤ 10 years 64 2 3.1 0.3 (0.1–1.3)  
Immigrated at unknown age 32 2 6.3 -  
 Country of birth missing 8 0 0 -  
Children      0.57
 No 394 27 6.9 1  
 Yes 634 48 7.6 1.11 (0.7–1.8)  
 Data on having children missing 313 18 5.8 0.83 (0.5–1.5)  
Number of children (n =1,028)      0.75
 0 394 27 6.9 1  
 1 203 13 6.4 0.93 (0.5–1.8)  
 2 239 21 8.9 1.31 (0.7–2.4)  
 3 or more 176 14 8.0 1.17 (0.6–2.3)  
 Number of children missing 16 0 0 -