Determinants of non-response in an occupational exposure and health survey in New Zealand
Determinants of non-response in an occupational exposure and health survey in New Zealand
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DOI：
10.1111/j.1753-6405.2011.00703.x
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发表时间：
2011-06-01
影响因子：
3.5
通讯作者：
Pearce, Neil
中科院分区：
文献类型：
--
作者：
Mannetje, Andrea't;Eng, Amanda;Pearce, Neil
目的：研究新西兰职业暴露与健康调查中不答复的决定因素以及潜在的不答复偏差。方法：随机抽取 10,000 名 20-64 岁新西兰人，通过邮件邀请参加电话调查。使用多元逻辑回归来研究无反应的决定因素。通过将其患病率标准化为源人群的人口分布，并比较早期响应者和晚期响应者，研究职业暴露、生活方式和健康指标是否与无响应相关。结果：响应率为 37%。年龄较小、毛利人血统、贫困程度最高和最低的群体以及学生身份、失业身份或退休身份是不接触的决定因素。拒绝与年龄较大和成为家庭主妇有关。在对源人口的人口分布进行标准化后，关键调查变量的患病率没有变化。结论：通过电话对邮寄邀请函未回复的人进行跟踪，使回复率增加了一倍以上，并提高了样本的代表性。尽管答复率较低，但我们没有发现重大不答复偏差的证据。启示：关于调查有效性的判断不应基于其答复率。
Objective: Study the determinants of non-response and the potential for non-response bias in a New Zealand survey of occupational exposures and health.Methods: A random sample of 10,000 New Zealanders aged 20-64 years were invited by mail to take part in a telephone survey. Multiple logistic regression was used to study the determinants of non-response. Whether occupational exposure, lifestyle and health indicators were associated with non-response was studied by standardising their prevalence towards the demographic distribution of the source population, and comparing early with late responders.Results: The response rate was 37%. Younger age, Maori descent, highest and lowest deprivation groups and being a student, unemployed, or retired were determinants of non-contact. Refusal was associated with older age and being a housewife. Prevalence of key survey variables were unchanged after standardising to the demographic distribution of the source population.Conclusions: Following up the non-responders to the mailed invitations with telephone calls more than doubled the response rate and improved the representativeness of the sample. Although the response rate was low, we found no evidence of major non-response bias.Implications: Judgement regarding the validity of a survey should not be based on its response rate.