Associations of intensity, duration, cumulative dose, and age at start of smoking, with thyroid cancer in Chinese males: A hospital-based case-control study in Zhejiang Province.

Tob Induc Dis · 2020 · PMC7713696 · PMID 33281531

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a significant trendno p-value reported

Consistently, a significant trend of increasing incidence of thyroid cancer has been found in China in the past decades.

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did not reach statistical significanceno p-value reported

The lower risk of thyroid cancer among former smokers was confirmed in a recent cohort study, and similarly, this association did not reach statistical significance (HR=0.90; 95% CI: 0.71–1.14) 23 .

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.