scholarly journals Depressive Symptoms, Lifestyle Structure, and ART Adherence Among HIV-Infected Individuals: A Longitudinal Mediation Analysis

2014 ◽  
Vol 19 (1) ◽  
pp. 34-40 ◽  
Author(s):  
Jessica F. Magidson ◽  
Aaron J. Blashill ◽  
Steven A. Safren ◽  
Glenn J. Wagner
Keyword(s):  
Depressive Symptoms ◽  
Mediation Analysis ◽  
Art Adherence ◽  
Longitudinal Mediation

scholarly journals The influence of subjective sleep quality on the association between eveningness and depressive symptoms.

2018 ◽  
Author(s):  
Charlotte Mary Horne ◽  
Ray Norbury
Keyword(s):  
Depressive Symptoms ◽  
Sleep Quality ◽  
Mediation Analysis ◽  
Depression Scale ◽  
Well Being ◽  
Poor Sleep ◽  
Subjective Sleep Quality ◽  
Subjective Sleep ◽  
Increased Risk ◽  
Healthy Participants

Increasing evidence suggests that eveningness is associated with increased risk for depression. Eveningness, however, is also associated with poor sleep quality and the unique role of eveningness in depressive symptomatology remains to be elucidated. The goal of the current study, therefore, was to examine the inter-relationships between eveningness, subjective sleep quality and depressive symptoms in healthy participants free of current or previous depression and sleep disorder. Here, 167 healthy participants (mean age 24.16, 129/38 females/males) completed the reduced Morningness-Eveningness Questionnaire (rMEQ), the Pittsburgh Sleep Quality Index (PSQI) and the Centre for Epidemiological Studies Depression Scale (CES-D). Bootstrap mediation analysis for a simple mediation model including rMEQ, PSQI and CES-D was applied. Eveningness was associated with increased depressive symptoms and mediation analysis showed that this relationship was partly mediated by sleep quality. Our results suggest that indicators of depression observed in evening-type individuals cannot be attributed exclusively to disturbed sleep. We suggest that interventions that target both sleep quality and dysfunctionl cognitive styles would be optimal to promote well-being in evening-type individuals.

scholarly journals Relationship between Air Passenger Transport, Tourism and Real Gross Domestic Product in Africa: A Longitudinal mediation analysis

2021 ◽  
Vol 10(4) (10(4)) ◽  
pp. 1200-1214
Author(s):  
Chengete Chakamera ◽  
Noleen M Pisa
Keyword(s):  
Gross Domestic Product ◽  
Mediation Analysis ◽  
Structural Equation ◽  
Total Effect ◽  
Domestic Product ◽  
Passenger Transport ◽  
Real Gross Domestic Product ◽  
Longitudinal Mediation ◽  
The Relationship

This paper analysed the relationships between air passenger transport, tourism and real gross domestic product per capita (rGDPpc) in Africa. Mediation models were analysed using the structural equation modelling approach. This analysis determined the role of a mediator variable in the relationship between dependent and independent variables. Bi-directional positive relationships were found between air passenger transport and rGDPpc, tourism and rGDPpc, followed by air passenger transport and tourism. A certain proportion of air passenger transport’s total effect on rGDPpc was from increased tourism, and some of the rGDPpc’s total effect on air passenger transport were from increased tourism. A sizable effect of tourism on rGDPpc was derived from increased air passenger transport, and a larger portion of rGDPpc’s total effect on tourism was from increased air passenger transport. These percentages show the strength of the mediation (or indirect) paths. The findings imply that it is vital to consider harmonised or integrated policies that facilitate the linkages between air passenger transport, tourism and rGDPpc. Novel in this study, is the scrutiny of the interrelationships between air passenger transport, tourism and rGDPpc in Africa, using longitudinal mediation analysis.

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