UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia.
Int J Environ Res Public Health. 2021 Jul 6;18(14):7216. doi: 10.3390/ijerph18147216.
The attrition rate of longitudinal study participation remains a challenge. To date, the Malaysian Cohort (TMC) study follow-up rate was only 42.7%. This study objective is to identify the cause of attrition among TMC participants and the measures to curb it. A total of 19,343 TMC participants from Kuala Lumpur and Selangor that was due for follow-up were studied. The two most common attrition reasons are undergoing medical treatment at another government or private health center (7.0%) and loss of interest in participating in the TMC project (5.1%). Those who were inclined to drop out were mostly Chinese, aged 50 years and above, unemployed, and had comorbidities during the baseline recruitment. We have also contacted 2183 participants for the home recruitment follow-up, and about 10.9% agreed to join. Home recruitment slightly improved the overall follow-up rate from 42.7% to 43.5% during the three-month study period.
纵向研究参与率的下降仍然是一个挑战。迄今为止，马来西亚队列研究（TMC）的随访率仅为 42.7%。本研究旨在确定 TMC 参与者流失的原因以及控制措施。共对来自吉隆坡和雪兰莪州的 19343 名 TMC 参与者进行了研究，这些参与者将进行随访。最常见的两个流失原因是在另一家政府或私人医疗机构接受治疗（7.0%）和对参与 TMC 项目失去兴趣（5.1%）。那些倾向于退出的人大多是中国人，年龄在 50 岁及以上，失业，在基线招募时患有合并症。我们还联系了 2183 名参与者进行家庭招募随访，其中约 10.9%同意参加。在为期三个月的研究期间，家庭招募使整体随访率从 42.7%略微提高到 43.5%。
