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Figure 1 | Epidemiologic Perspectives & Innovations

Figure 1

From: Changing population characteristics, effect-measure modification, and cancer risk factor identification

Figure 1

Changes in obesity and aspirin use between 1970 and 2000 in U. S. populations. Obesity data prior to 1991 from NHANES [25], for 1991–94 from colon cancer case-control study [17], and for 1999–2000 from rectal cancer study [42]. Aspirin data from 1970s and 1980 from references [26, 27] and for 1991–94 from colon cancer case-control study [17], and for 1999–2000 from rectal cancer study [42].

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Epidemiologic Perspectives & Innovations

ISSN: 1742-5573