Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trials with Irregular and Informative Assessment Times: A Sensitivity
  Analysis Approach   Many trials are designed to collect outcomes at pre-specified times after
randomization. However, in practice, there is often substantial variability in
the times at which participants are actually assessed, which poses a challenge
to learning about the treatment effects at the targeted assessment times. Any
method for analyzing a trial with such irregular assessment times relies on
untestable assumptions. Therefore, conducting a sensitivity analysis is an
important step that can strengthen conclusions from such trials. However, no
sensitivity analysis methodology has been developed. We develop a methodology
that accounts for possibly informative assessment times, where assessment at
time t may be related to the outcome at that time, even after accounting for
observed past history. We implement our methodology using a new augmented
inverse-intensity-weighted estimator, and we apply it to a trial of low-income
participants with uncontrolled asthma. We also evaluate the performance of our
estimation procedure in a realistic simulation study.

9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th