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Table 4 Effect of interaction between blood lead and blood cadmium levels on odds of H. pylori seropositivity, NHANES 1999–2000

From: Elevated blood lead and cadmium levels associated with chronic infections among non-smokers in a cross-sectional analysis of NHANES data

Blood lead levels

Blood cadmium levels

<Median

≥Median

AOR (95 % CI) within Pb strata

N (Weighted %)

AOR (95 % CI)

N (Weighted %)

AOR (95 % CI)

<Median

1662 (11.6)

1.0

1074 (23.7)

1.38 (1.03–1.97)

1.20 (0.88–1.64)

P = 0.0337

P = 0.2597

≥Median

1436 (22.1)

1.43 (1.10–1.87)

4073 (35.2)

1.63 (1.27–2.10)

1.27 (1.02–1.57)

P = 0.0082

P = 0.0002

P = 0.0313

AOR (95 % CI) within Cd strata

 

1.32 (0.97–1.79)

 

1.27 (0.98–1.65)

 

P = 0.0795

P = 0.0689

  1. Measure of interaction on additive scale: RERI (95 % CI) = -0.21 (−0.74–0.32)
  2. Measure of interaction on multiplicative scale: ratio of ORs (95 % CI) = 0.82 (0.56–1.21); P = 0.3183
  3. AORs are adjusted for age, gender, race/ethnicity, country of birth origin, family income, self-reported general health condition, tap water source, and household crowding
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Environmental Health

ISSN: 1476-069X