Fig. 2From: A population study on the time trend of cigarette smoking, cessation, and exposure to secondhand smoking from 2001 to 2013 in TaiwanTime trend of quit ratio in men between 2001 and 2013. Note 1: Cessation rate (quit ratio) is defined as ex-smokers/all those who have ever smoked 100 or more cigarettes. Note 2: Comparisons between surveys were adjusted using SUDAAN. Note 3: (+) indicates a statistically significant difference in the prevalence of smoking in the particular age group between the 4 surveys, § indicates a statistically significant difference between. 2001 and 2005, * indicates a statistically significant difference between 2005 and 2009, #indicates a statistically significant difference between 2009 and 2013, $indicates a statistically significant difference between 2005 and 2013Back to article page