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Estimating Size of Drug Users in Macau: an Open Population Capture-Recapture Model with Data Augmentation Using Public Registration Data
Asian Journal of Criminology ( IF 1.8 ) Pub Date : 2018-03-14 , DOI: 10.1007/s11417-018-9266-0
Tianji Cai , Yiwei Xia

Successful drug intervention policies rely on timely assessment of size of drug users and close monitoring of trend regarding drug abuse. Taking advantage of data collected by the Central Registration System for Drug Abusers of Macau (CRSDAM), this study applied open population capture-recapture models with data augmentation techniques to estimate the size of drug users and to identify influential factors on capture and survival probabilities from 2009 to 2014. In particular, the data augmentation technique was used to address missing data issues. The estimated size of drug users has been slowly declining from 2442 (95% Bayesian credible interval [BCI] 2042–2914) in 2009 to 807 (95% BCI 654–1000) in 2014 with a small fluctuation of 2251 (95% BIC 1950–2599) in 2011, and the estimated cumulative size of drug users is 6199 (95% BCI 5651–6873), which is correspondent to a prevalence rate of 1.20% of the current population aged 15 to 54. Although the estimated sizes of total, narcotic, and other drug users were declining, the size of stimulant users might be increasing. People who used narcotics as their first drug and who were reported by governmental agencies were more likely to stay in the registration system, while those who used needle injection were less likely to stay. Governmental agencies, higher education, and using needle injection were negatively associated with the probability of capture over time, while using narcotics as the first drug was positively associated with it.

中文翻译:

估计澳门吸毒者的规模:使用公共注册数据进行数据增强的开放式人口捕获-重新捕获模型

成功的药物干预政策依赖于对吸毒者规模的及时评估和对药物滥用趋势的密切监测。本研究利用澳门吸毒者中央登记系统(CRSDAM)收集的数据,应用开放的人口捕获-再捕获模型和数据增强技术来估计吸毒者的规模并确定影响捕获和生存概率的因素。 2009 年至 2014 年。特别是,数据增强技术用于解决缺失数据问题。吸毒者的估计人数从 2009 年的 2442(95% 贝叶斯可信区间 [BCI] 2042-2914)缓慢下降到 2014 年的 807(95% BCI 654-1000),小幅波动为 2251(95% BIC 1950) –2599) 2011 年,估计吸毒者累计规模为 6199 (95% BCI 5651–6873),这对应于当前 15 至 54 岁人口的 1.20% 的流行率。尽管总吸毒者、麻醉品使用者和其他吸毒者的估计规模在下降,但兴奋剂使用者的规模可能会增加。使用麻醉品作为第一毒品并被政府机构报告的人更有可能留在注册系统中,而使用针头注射的人则不太可能留下来。随着时间的推移,政府机构、高等教育和使用针头注射与捕获概率呈负相关,而使用麻醉剂作为第一种药物与之呈正相关。兴奋剂使用者的规模可能会增加。使用麻醉品作为第一毒品并被政府机构报告的人更有可能留在注册系统中,而使用针头注射的人则不太可能留下来。随着时间的推移,政府机构、高等教育和使用针头注射与捕获概率呈负相关,而使用麻醉剂作为第一种药物与之呈正相关。兴奋剂使用者的规模可能会增加。使用麻醉品作为第一毒品并被政府机构报告的人更有可能留在注册系统中,而使用针头注射的人则不太可能留下来。随着时间的推移,政府机构、高等教育和使用针头注射与捕获概率呈负相关,而使用麻醉剂作为第一种药物与之呈正相关。
更新日期:2018-03-14
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