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Table 4 Modification of the association between a one standard deviation increase in 28-day BC and percent change in HFa

From: Exposure to sub-chronic and long-term particulate air pollution and heart rate variability in an elderly cohort: the Normative Aging Study

Characteristics

% change

95 % CI

Oxidative stress genetic score < median

−3.3

−7.4, 1.0

Oxidative stress genetic score > median

−1.8

−4.9, 1.5

P for interaction

0.55

Not obese

−1.7

−4.5, 1.2

Obese

−3.5

−7.4, 0.5

P for interaction

0.64

No diabetes

−2.1

−4.6, 0.4

Diabetes

−4.6

−10.6, 1.8

P for interaction

0.51

No hypertension

−2.2

−5.8, 1.5

Hypertension

−2.2

−5.0, 0.8

P for interaction

0.60

  1. BC black carbon, HF high frequency power, SD standard deviation
  2. aWe evaluated effect modification of the association between a 1 SD increase in the 28 day moving average of BC exposure and percent change in HF; Normative Aging Study, 2000–2011