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Self-reported smoking status compared to anonymous urinary cotinine validation (n =297).
| Smoker % (n) | Nonsmoker % (n) | |
|---|---|---|
| Self-report | 18.2 (54) | 81.8 (243) |
| High-positive vs. low-positive + negative results | 14.8 (44) | 85.2 (253) |
| Any positive result vs. negative results | 43.1 (128) | 56.9 (169) |
