Properties of the Cigarette Dependence Scale and the Fagerstrom Test of Nicotine Dependence in a representative sample of smokers in Norway
Properties of the Cigarette Dependence Scale and the Fagerstrom Test of Nicotine Dependence in a representative sample of smokers in Norway
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DOI：
10.1111/j.1360-0443.2008.02278.x
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发表时间：
2008-09-01
期刊：
影响因子：
6
通讯作者：
Boe, Jacob
中科院分区：
文献类型：
--
作者：
Stavem, Knut;Rogeberg, Ole Jorgen;Boe, Jacob
目的比较香烟依赖量表（cd -12）、6项法格斯特罗姆尼古丁依赖测验（FTND）和两种较短版本的尼古丁/烟草依赖量表的特性。方法在挪威一个代表性的普通人群样本中对吸烟者进行横断面电话调查，我们比较了这些措施。我们用Cronbach's alpha评估(i)内部一致性信度；（ii）比较项目得分；（三）检验问卷的效度。在较小的方便样本中评估重测信度。结果1265名受访者（64%）中，290名（23%）为日常吸烟者，纳入进一步分析。他们的平均年龄为42岁[标准差（SD） 15]， 46%为女性。他们平均每天吸烟13支（标准差6）。FTND的内部一致性信度为0.61 (n = 267)， CDS-12的内部一致性信度为0.81 （n = 266）。得分分布表明FTND存在地板效应。FTND重测信度为0.90，CDS-12重测信度为0.97 （n = 31）。对于FTND （n = 262）和CDS-12 (n = 263)，量表得分与关于全天不吸烟后最大吸烟意愿的问题之间的相关性为0.36 （P < 0.001）和0.45 （P < 0.001）。两种量表或其简略版本与外部变量的关联几乎没有差异。结论两份问卷的电话管理均可接受，并建立了四种量表的人口参考值。这些问卷相互关联，显示出相似的性质。研究结果支持了量表的结构效度。
Aims To compare the properties of four measures of dependence to nicotine/tobacco, the 12-item Cigarette Dependence Scale (CDS-12), the six-item Fagerstrom Test of Nicotine Dependence (FTND) and two shorter versions of the same measures. Methods In a cross-sectional telephone survey of smokers in a representative general population sample in Norway, we compared the measures. We assessed (i) internal consistency reliability with Cronbach's alpha; (ii) compared item scores; and (iii) tested the validity of the questionnaires. Test-retest reliability was assessed in a smaller convenience sample. Results Among 1265 respondents (64%), 290 (23%) were daily smokers and included in further analysis. Their mean age was 42 years [standard deviation (SD) 15] and 46% were female. They smoked on average 13 cigarettes per day (SD 6). Internal consistency reliability was 0.61 for the FTND (n = 267) and 0.81 for the CDS-12 (n = 266). Score distributions suggested a floor effect for the FTND. Test-retest reliability was 0.90 for the FTND and 0.97 for the CDS-12 (n = 31). The correlation between the scale scores and a question about the maximum willingness to pay for a cigarette after not smoking all day was 0.36 (P < 0.001) for the FTND (n = 262) and 0.45 (P < 0.001) for the CDS-12 (n = 263). There was little difference in the associations of the two scales or their abbreviated versions with external variables. Conslusions Telephone administration was acceptable for both questionnaires, and we have established population reference values for the four scales. The questionnaires were associated with each other and showed similar properties. The findings support the construct validity of the scales.