User profiles for Tianchen Qian
Tianchen QianAssistant Professor of Statistics, University of California, Irvine Verified email at uci.edu Cited by 463 |
The microrandomized trial for developing digital interventions: Experimental design and data analysis considerations.
Just-in-time adaptive interventions (JITAIs) are time-varying adaptive interventions that use
frequent opportunities for the intervention to be adapted—weekly, daily, or even many times …
frequent opportunities for the intervention to be adapted—weekly, daily, or even many times …
Sense2Stop: a micro-randomized trial using wearable sensors to optimize a just-in-time-adaptive stress management intervention for smoking relapse prevention
Background Relapse to smoking is commonly triggered by stress, but behavioral interventions
have shown only modest efficacy in preventing stress-related relapse. Continuous digital …
have shown only modest efficacy in preventing stress-related relapse. Continuous digital …
Estimating time-varying causal excursion effects in mobile health with binary outcomes
Advances in digital technology and wearables have made it possible to deliver behavioural
mobile health interventions to individuals in their everyday lives. Micro-randomized trials are …
mobile health interventions to individuals in their everyday lives. Micro-randomized trials are …
[HTML][HTML] Linear mixed models with endogenous covariates: modeling sequential treatment effects with application to a mobile health study
Mobile health is a rapidly developing field in which behavioral treatments are delivered to
individuals via wearables or smartphones to facilitate health-related behavior change. Micro-…
individuals via wearables or smartphones to facilitate health-related behavior change. Micro-…
[HTML][HTML] Characterization of hippocampal sclerosis of aging and its association with other neuropathologic changes and cognitive deficits in the oldest-old
Hippocampal sclerosis of aging (HS-A) is a common age-related neuropathological lesion
characterized by neuronal loss and astrogliosis in subiculum and CA1 subfield of …
characterized by neuronal loss and astrogliosis in subiculum and CA1 subfield of …
[HTML][HTML] Promoting Nrf2/Sirt3-dependent mitophagy suppresses apoptosis in nucleus pulposus cells and protects against intervertebral disc degeneration
S Hu, C Zhang, T Qian, Y Bai, L Chen, J Chen… - … medicine and cellular …, 2021 - hindawi.com
One of the causes of intervertebral disc degeneration (IVDD) is nucleus pulposus cell (NPC)
death, possibly apoptosis. In this study, we explored the role of the Nrf2/Sirt3 pathway and …
death, possibly apoptosis. In this study, we explored the role of the Nrf2/Sirt3 pathway and …
[HTML][HTML] How notifications affect engagement with a behavior change app: Results from a micro-randomized trial
Background: Drink Less is a behavior change app to help higher-risk drinkers in the United
Kingdom reduce their alcohol consumption. The app includes a daily notification asking …
Kingdom reduce their alcohol consumption. The app includes a daily notification asking …
Baicalein Inhibits the IL-1β-Induced Inflammatory Response in Nucleus Pulposus Cells and Attenuates Disc Degeneration In vivo
H Jin, Q Wang, J Wu, X Han, T Qian, Z Zhang, J Wang… - Inflammation, 2019 - Springer
Intervertebral disc degeneration (IDD) is widely considered one of the main causes of low
back pain, which is a chronic progressive disease closely related to inflammation and …
back pain, which is a chronic progressive disease closely related to inflammation and …
[HTML][HTML] Resting-state brain information flow predicts cognitive flexibility in humans
The human brain is a dynamic system, where communication between spatially distinct areas
facilitates complex cognitive functions and behaviors. How information transfers between …
facilitates complex cognitive functions and behaviors. How information transfers between …
Validation of the Hong Kong Liver Cancer Staging System in determining prognosis of the North American patients following intra-arterial therapy
…, J Chapiro, S Sahu, RE Schernthaner, T Qian… - Clinical …, 2017 - Elsevier
Background & Aims There is debate over the best way to stage hepatocellular carcinoma (HCC).
We attempted to validate the prognostic and clinical utility of the recently developed …
We attempted to validate the prognostic and clinical utility of the recently developed …