他们发现，居住在经济欠发达地区的人戒烟成率要稍微高一些。
'For example, because gender, ethnicity, class, age and level of dependency affect success in giving up smoking, tailored interventions may help to improve cessation rates,' a spokesman from the National Institute for Health and Clinical Excellence and from the UK Centre for Tobacco Control Studies said.
英国烟草控制研究中心的称，“例如性别、种族、社会阶层、年龄以及依赖程度对戒烟的成功率都会产生影响，量身而定的方案更容易达到戒除吸烟习惯的目标。”