Performance Appraisal Office, Children's Hospital of Hebei Province, China.
Institutes for Non-communicable Chronic Diseases Control and Prevention, Hebei Provincial Centre for Disease Control and Prevention, China.
Public Health. 2020 Oct;187:127-133. doi: 10.1016/j.puhe.2020.08.013. Epub 2020 Sep 17.
Smoking prevalence has significantly increased among Chinese adolescences in the past decades. The aim of our study is to investigate the trends and changing patterns in age of smoking initiation among the Chinese population.
Pooled data from the 2006-2015 China Health and Nutrition Survey was used for analysis. A total of 10,032 adults aged ≥18 years who were born between 1950 and 1997 were separated into five birth cohorts (1950-1959, 1960-1969, 1970-1979, 1980-1989 and 1990-1997).
Age-specific (10-24 years) smoking initiation rates were calculated by gender, educational level and urbanisation. The multiple logistic models were used for estimates of changes in smoking initiation age.
The mean age of smoking initiation decreased substantially from 22.0 years (95% confidence interval [CI]: 21.2-22.7) to 17.5 years (95% CI: 16.2-19.1) over five generations. A large decrease was seen in the initiation age group of 15-24 years in the 1980s cohort (15-19 years: odds ratio [OR] = 0.57; 95% CI: 0.19-0.97; 20-24 years: OR = 0.45; 95% CI: 0.18-0.82); a significant decrease was also found in the 1990s cohort (15-19 years: OR = 0.47; 95% CI: 0.11-0.94; 20-24 years old: OR = 0.34; 95% CI: 0.14-0.85). The peak age of smoking initiation changed from 20 years old to 18 years old over the five generations.
The age of smoking initiation has decreased rapidly in the Chinese population in the past decades. Chinese adolescents are becoming the main target group for the tobacco marketing industry, and national legislations are urgently required.
在过去几十年中，中国青少年的吸烟率显著上升。本研究旨在调查中国人群吸烟起始年龄的趋势和变化模式。
使用 2006-2015 年中国健康与营养调查的汇总数据进行分析。将 1950 年至 1997 年出生的 10032 名年龄≥18 岁的成年人分为五个出生队列（1950-1959 年、1960-1969 年、1970-1979 年、1980-1989 年和 1990-1997 年）。
按性别、教育水平和城市化程度计算特定年龄（10-24 岁）的吸烟起始率。使用多因素逻辑模型估计吸烟起始年龄的变化。
在五代人中，吸烟起始的平均年龄从 22.0 岁（95%置信区间 [CI]：21.2-22.7）大幅下降至 17.5 岁（95% CI：16.2-19.1）。20 世纪 80 年代队列的 15-24 岁年龄组的起始年龄明显下降（15-19 岁：比值比 [OR] = 0.57；95%CI：0.19-0.97；20-24 岁：OR = 0.45；95%CI：0.18-0.82）；20 世纪 90 年代队列也有显著下降（15-19 岁：OR = 0.47；95%CI：0.11-0.94；20-24 岁：OR = 0.34；95%CI：0.14-0.85）。吸烟起始的高峰期从 20 岁变为五代人中的 18 岁。
在过去几十年中，中国人群的吸烟起始年龄迅速下降。中国青少年正成为烟草营销行业的主要目标群体，迫切需要国家立法。
