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Prevalence (% and 95% CI) of microbial antibodies in schoolchildren in Finland and Russian Karelia
| Finland (n = 266) | Russian Karelia (n = 266) | P-value | |
|---|---|---|---|
| Coxsackievirus B4 | 77 (72–82) | 93 (90–96) | < 0·001 |
| Helicobacter pylori (%) | 5 (3–8) | 73 (64–78) | < 0·001 |
| Toxoplasma gondii (%) | 5 (3–9) | 24 (19–29) | < 0·001 |
| Hepatitis A virus (%) | 2 (1–5)* | 24 (19–29) | < 0·001 |
Only 166 Finnish children were screened for HAV antibodies.
