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Table 1 Joint effects of vaccination with BCG and vaccinia on melanoma risk a

From: The biography of the immune system and the control of cancer: from St Peregrine to contemporary vaccination strategies

Co-variable

Only BCG

Only vaccinia

Both

Age group

   

<50 years

0.23 (0.05-0.91) n = 25

0.31 (0.07-0.98) n = 111

0.27 (0.09-0.80) n = 299

≥50 years

0.74 (0.25-2.28) n = 20

0.69 (0.38-1.22) n = 362

0.48 (0.26-0.86) n = 313

  1. aWith respect to two age groups, <50 and 50 years. Data expressed as Odds Ratios (95% Confidence interval), adjusted for centre, sex, ethnic origin, skin type, freckling index, number of naevi and number of sunburns. n = number of cases and controls. Summarized from the FEBIM study [81].