Dal Grande Eleonora, Chittleborough Catherine Ruth, Campostrini Stefano, Dollard Maureen, Taylor Anne Winifred
Population Research and Outcome Studies, School of Medicine, The University of Adelaide, Adelaide, Australia.
School of Population Health, The University of Adelaide, Adelaide, Australia.
PLoS One. 2016 Feb 26;11(2):e0150231. doi: 10.1371/journal.pone.0150231. eCollection 2016.
Mobile telephone numbers are increasingly being included in household surveys samples. As approach letters cannot be sent because many do not have address details, alternatives approaches have been considered. This study assesses the effectiveness of sending a short message service (SMS) to a random sample of mobile telephone numbers to increase response rates. A simple random sample of 9000 Australian mobile telephone numbers: 4500 were randomly assigned to be sent a pre-notification SMS, and the remaining 4500 did not have a SMS sent. Adults aged 18 years and over, and currently in paid employment, were eligible to participate. American Association for Public Opinion Research formulas were used to calculated response cooperation and refusal rates. Response and cooperation rate were higher for the SMS groups (12.4% and 28.6% respectively) than the group with no SMS (7.7% and 16.0%). Refusal rates were lower for the SMS group (27.3%) than the group with no SMS (35.9%). When asked, 85.8% of the pre-notification group indicated they remembered receiving a SMS about the study. Sending a pre-notification SMS is effective in improving participation in population-based surveys. Response rates were increased by 60% and cooperation rates by 79%.
手机号码越来越多地被纳入住户调查样本中。由于许多手机号码没有地址详情，无法发送信函，因此考虑了其他方法。本研究评估向随机抽取的手机号码样本发送短信服务（SMS）以提高回复率的有效性。对9000个澳大利亚手机号码进行简单随机抽样：4500个被随机分配发送预通知短信，其余4500个未发送短信。年龄在18岁及以上且目前有带薪工作的成年人有资格参与。使用美国民意研究协会的公式计算回复合作率和拒绝率。短信组的回复率和合作率（分别为12.4%和28.6%）高于未发送短信的组（7.7%和16.0%）。短信组的拒绝率（27.3%）低于未发送短信的组（35.9%）。当被问及此事时，85.8%的预通知组表示他们记得收到过关于该研究的短信。发送预通知短信在提高基于人群的调查参与度方面是有效的。回复率提高了60%，合作率提高了79%。
