Bricker Jonathan B, Andersen M Robyn, Rajan K Bharat, Sarason Irwin G, Peterson Arthur V
Cancer Prevention Research Program, Division of Public Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024, USA.
Addiction. 2007 Oct;102(10):1665-75. doi: 10.1111/j.1360-0443.2007.01945.x.
The first longitudinal investigation of the extent to which same-age and older schoolmates' smoking and non-smoking are associated with adolescents' smoking transitions during three grade intervals.
Same-age and older schoolmates' smoking and non-smoking were assessed when adolescents were at grades 5 (age 10), 7 (age 12) and 9 (age 14). Adolescents' smoking transitions were assessed at three grade intervals: 5th-7th (age 10-12), 7th-9th (age 12-14) and 9th-12th (age 14-17).
Forty Washington State school districts.
Smoking questionnaire data were gathered on a cohort of adolescents (n = 4354 for same-age schoolmate analysis; n = 1833 for older schoolmate analysis) that was 49% female and 91% Caucasian.
No significant evidence that same-age schoolmates' smoking or non-smoking was associated with any of the adolescent smoking transitions at any of the three grade intervals. In contrast, the probability that each older schoolmate's smoking was associated with the adolescent making the transition to trying smoking was 1% (95% CI: 0.4%, 1.5%) and with the transition from trying to monthly smoking was also 1% (95% CI: 0.2%, 2.0%) during the 7th-9th grade (age 12-14) interval. Moreover, each older schoolmate's non-smoking was associated with a 1.001-1.006 (all P < 0.05) relative risk of an adolescent not trying smoking or escalating from trying to monthly smoking at several grade intervals.
Interventions should perhaps focus on the influence of both smoking and non-smoking older schoolmates during late childhood and early adolescence.
首次纵向调查同龄和年长同学的吸烟与不吸烟情况在三个年级间隔期间与青少年吸烟转变的关联程度。
在青少年5年级（10岁）、7年级（12岁）和9年级（14岁）时评估同龄和年长同学的吸烟与不吸烟情况。在三个年级间隔评估青少年的吸烟转变情况：5年级至7年级（10岁至12岁）、7年级至9年级（12岁至14岁）以及9年级至12年级（14岁至17岁）。
华盛顿州的40个学区。
收集了一组青少年（同龄同学分析n = 4354；年长同学分析n = 1833）的吸烟问卷数据，其中女性占49%，白种人占91%。
没有显著证据表明同龄同学的吸烟或不吸烟情况在任何一个三个年级间隔期间与青少年的任何吸烟转变相关。相比之下，在7年级至9年级（12岁至14岁）间隔期间，每个年长同学吸烟与青少年转变为尝试吸烟的概率为1%（95%置信区间：0.4%，1.5%），与从尝试吸烟转变为每月吸烟的概率也为1%（95%置信区间：0.2%，2.0%）。此外，在几个年级间隔期间，每个年长同学不吸烟与青少年不尝试吸烟或从尝试吸烟升级为每月吸烟的相对风险为1.001 - 1.006（所有P < 0.05）。
干预措施或许应聚焦于童年晚期和青春期早期吸烟和不吸烟年长同学的影响。
