Canonical Causal Diagrams to Guide the Treatment of Missing Data in Epidemiologic Studies.
Canonical Causal Diagrams to Guide the Treatment of Missing Data in Epidemiologic Studies.
复制标题
在流行病学研究中指导缺失数据的治疗的规范因果图。
DOI:
10.1093/aje/kwy173
复制
发表时间:
2018-12-01
影响因子:
5
通讯作者:
Carlin JB
中科院分区:
文献类型:
--
作者:
Moreno-Betancur M;Lee KJ;Leacy FP;White IR;Simpson JA;Carlin JB
With incomplete data, the “missing at random” (MAR) assumption is widely understood to enable unbiased estimation with appropriate methods. While the need to assess the plausibility of MAR and to perform sensitivity analyses considering “missing not at random” (MNAR) scenarios has been emphasized, the practical difficulty of these tasks is rarely acknowledged. With multivariable missingness, what MAR means is difficult to grasp, and in many MNAR scenarios unbiased estimation is possible using methods commonly associated with MAR. Directed acyclic graphs (DAGs) have been proposed as an alternative framework for specifying practically accessible assumptions beyond the MAR-MNAR dichotomy. However, there is currently no general algorithm for deciding how to handle the missing data given a specific DAG. Here we construct “canonical” DAGs capturing typical missingness mechanisms in epidemiologic studies with incomplete data on exposure, outcome, and confounding factors. For each DAG, we determine whether common target parameters are “recoverable,” meaning that they can be expressed as functions of the available data distribution and thus estimated consistently, or whether sensitivity analyses are necessary. We investigate the performance of available-case and multiple-imputation procedures. Using data from waves 1–3 of the Longitudinal Study of Australian Children (2004–2008), we illustrate how our findings can guide the treatment of missing data in point-exposure studies.
登录
查看更多内容
影响因子:
5.7
作者:
MENG, XL
通讯作者:
MENG, XL
影响因子:
4.5
作者:
Cheung KL;Ten Klooster PM;Smit C;de Vries H;Pieterse ME
通讯作者:
Pieterse ME
影响因子:
5
作者:
Gorman E;Leyland AH;McCartney G;White IR;Katikireddi SV;Rutherford L;Graham L;Gray L
通讯作者:
Gray L
影响因子:
2.3
作者:
Moreno-Betancur, M.;Chavance, M.
通讯作者:
Chavance, M.
影响因子:
7
作者:
Collins, LM;Schafer, JL;Kam, CM
通讯作者:
Kam, CM