From: Secular trends of salted fish consumption and nasopharyngeal carcinoma: a multi-jurisdiction ecological study in 8 regions from 3 continents
Year of cumulative cigarette consumption per capita
Age-standardized incidence rate
Age-standardized mortality rates
Male
Female
0
0.694*
0.735*
0.598*
0.446
5
0.646*
0.685*
0.768*
0.592*
10
0.635
0.625
0.941*
0.563