Jackson R, Beaglehole R
Am J Epidemiol. 1985 Aug;122(2):341-4. doi: 10.1093/oxfordjournals.aje.a114106.
Information on the cigarette smoking habits of all New Zealanders aged 15 years and over was collected in two consecutive national censuses in 1976 and 1981. These data show that the self-reported per capita consumption of cigarettes declined by 9.4 per cent during this five-year period. A comparison of census data with national cigarette sales data for the corresponding years indicated considerable underreporting of cigarette use in the two censuses. However, there was little change in the degree of underreporting between 1976 (28 per cent) and 1981 (30 per cent) and the estimated decline in per capita consumption of cigarettes based on sales data (8.6 per cent) was similar to the census-based estimate. These findings suggest that trends in self-reported consumption are a reliable indicator of national trends in cigarette smoking habits.
1976年和1981年连续两次全国人口普查收集了所有15岁及以上新西兰人的吸烟习惯信息。这些数据表明，在这五年期间，自我报告的人均香烟消费量下降了9.4%。将人口普查数据与相应年份的全国香烟销售数据进行比较，结果表明两次人口普查中香烟使用情况的报告存在大量少报。然而，1976年（28%）至1981年（30%）期间少报程度变化不大，基于销售数据估计的人均香烟消费量下降（8.6%）与基于人口普查的估计相似。这些发现表明，自我报告的消费趋势是全国吸烟习惯趋势的可靠指标。
