Nonparametric estimation of random effects densities in a linear mixed-effects model with Fourier-oscillating noise density

Trong, Dang Duc; Phuong, Cao Xuan; Viet, Tran Quoc

doi:10.1080/03610926.2019.1625923

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…The Mann-Kendall Test was used to assess changing trends across the seven observation points (Kendall, 1948). The nonparametric linear mixed effects model was used to examine the association between uncertainty stress and several mental and behavioral response variables (Trong et al, 2020). Regression parameters in fixed effects were estimated using the Theil-Sen test (Fernandes andLeblanc, 2005, Q, 2008).…”

Section: Discussionmentioning

confidence: 99%

Temporal changes in mental response and prevention patterns, and their impact from uncertainty stress during the transition in China from the COVID-19 epidemic to sporadic infection

Peng

Yang

et al. 2021

Preprint

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Objective: This prospective observational study examined changing trends of mental responses and prevention patterns, and their impact from uncertainty stress during the transition in China from the COVID 19 epidemic to sporadic infection. Setting: A prospective longitudinal observation design was utilized in this study. Participants: We recruited participants for an online panel survey from chat groups on Chinese social media platforms. Data collection: There were 7 waves of interviews. Data were obtained by an online survey. A special administrative WeChat group was established to manage the follow up data collection. Measures: Several mental responses and prevention patterns were each measured by single questionnaire items. Uncertainty stress was measured by 5-point scale. An irrational beliefs about prevention variable was comprised 5 common misconceptions, which manifested during the COVID 19 epidemic in China. Analysis: Sixty two participants completed all observation points and were included in the study. The Mann Kendall Test was used to assess changing trends across the seven observation points. The nonparametric linear mixed effects model was used to examine the association between uncertainty stress and mental and behavioral responses. Results: The mean uncertainty stress did not change significantly over the observation period (T:-0.911, P>0.05). This trend was also true for perceived risk (T: -0.141, P>0.05), perceived severity (T: 1.010, P>0.05), self efficacy for prevention (T: 0.129, P>0.05), and prevention behavior (T: 0.728, P>0.05). There was a statistically significant downwards trend in irrational beliefs about prevention (T: -4.993, p < 0.01), sleep (T: -2.499, p < 0.05), emotions (T: -5.650, p < 0.01), and lifestyle (T: -5.978, p < 0.01). The results showed that uncertainty stress was positively associated with irrational beliefs (beta: 0.16298, p<0.01). The more uncertainty stress, the worse was their sleep (beta: 0.02070, p<0.05), emotions (beta: 0.03462, p<0.01), and lifestyle(beta: 0.02056, p<0.05). High levels of uncertainty stress was negatively associated with self-efficacy for prevention and prevention behavior, beta value was =-1.33210 (p<0.01) and -0.82742 (p<0.01), respectively. Conclusion: As the COVID-19 virus spreads around the globe, it is currently in epidemic status in some countries, in sporadic status in another countries, and it will eventually transition to sporadic infection status. This study provides new information on changing trends of mental responses and prevention patterns from the COVID-19 epidemic as the transition to a sporadic infection period takes place. These results may have important policy and disease prevention in post-epidemic times.

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Section: Discussionmentioning

confidence: 99%

Temporal changes in mental response and prevention patterns, and their impact from uncertainty stress during the transition in China from the COVID-19 epidemic to sporadic infection

Peng

Yang

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The Mann–Kendall Test was used to assess changing trends across the seven observation points [ 39 ]. The nonparametric linear mixed effects model was used to examine the association between uncertainty stress and several mental and behavioral response variables [ 40 ]. Regression parameters in fixed effects were estimated using the Theil-Sen test [ 41 , 42 ].…”

Section: Methodsmentioning

confidence: 99%

Temporal changes in mental response and prevention patterns, and their impact from uncertainty stress during the transition in China from the COVID-19 epidemic to sporadic infection

Peng,

Yang,

Zhang

et al. 2023

Heliyon

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“…The Mann–Kendall test was used to assess changing trends across the five observation points [ 29 ]. The non-parametric linear mixed-effects model was used to examine the association between confirmed new patients, perceived disease risk and severity, self-efficacy and isolation status, with mental stress, emotion and lifestyle status [ 30 ]. Regression parameters in fixed effects were estimated using the Theil–Sen test [ 31 , 32 ].…”

Section: Methodsmentioning

confidence: 99%

Changing trends of mental and behavioral responses and associations during the COVID-19 epidemic in China: a panel study

Yang

Peng

Yang

et al. 2021

Health Education Research

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This prospective observational study examined changing trends in mental and behavioral responses, and their association with perceived risk, severity, self-efficacy and isolation status during the Chinese COVID-19 epidemic. There were five waves of interviews. Descriptive statistics and non-parametric test methods were used for data analysis. Participants numbered 150 for the linkable baseline survey and 102 completed all 5 survey waves and were included in the analysis. Mental stress, emotional status and lifestyle manifested a statistically significant downwards trend across the total period of this panel study. The number of reported new confirmed patients perceived high risk and perceived severity were positively associated with mental stress, emotional status and lifestyle. Self-efficacy was negatively associated with each type of mental and behavioral response. The more time people were confined to their home, the more serious the emotional and lifestyle problems. Dose-response relationships were noted between the number of reported new confirmed patients and mental stress, emotional status and lifestyle during the five observation points. This study yielded new information about mental and behavioral responses among Chinese people during the COVID-19 epidemic. Policy changes and health education are essential for minimizing the adverse health effects of these responses.

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Nonparametric estimation of random effects densities in a linear mixed-effects model with Fourier-oscillating noise density

Cited by 4 publications

References 14 publications

Temporal changes in mental response and prevention patterns, and their impact from uncertainty stress during the transition in China from the COVID-19 epidemic to sporadic infection

Temporal changes in mental response and prevention patterns, and their impact from uncertainty stress during the transition in China from the COVID-19 epidemic to sporadic infection

Temporal changes in mental response and prevention patterns, and their impact from uncertainty stress during the transition in China from the COVID-19 epidemic to sporadic infection

Changing trends of mental and behavioral responses and associations during the COVID-19 epidemic in China: a panel study

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