The Cohort effect on the incidence of tuberculosis showed a decreasing trend in India from 1908 to 1962 and from 1987 to 1997.
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A Long-Term Trend Study of Tuberculosis Incidence in China, India and United States 1992-2017: A Joinpoint and Age-Period-Cohort Analysis.
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The sentences
The net age effect in China and India showed a negative trend, while the cohort effect decreased from the earlier birth cohort to the recent birth cohort.
The net cohort effect in the United States showed an unfavorable trend, mainly due to rising smoking rates and the emergence of an economic crisis.