Memory, Attention, and Concentration Dysfunction Post-COVID-19 Among College Students in Saudi Arabia: A Case-Control Study

Lifestyles and academic stress among health sciences students at the National University of Chimborazo, Ecuador: a longitudinal study

Background

The significant changes experienced by university students in their training are inherent to educational processes. Social isolation caused by the COVID-19 pandemic, online education and the reopening of higher-education institutions produced substantial variations in the lifestyle of university students in health sciences and generated academic stress and perceived stress. This study was conducted at the National University of Chimborazo (UNACH), a public institution located in Riobamba, central Ecuador, the diverse student's population provided an ideal setting for examining the interplay between academic and perceived stress, lifestyle factors, and learning modalities. The research focused on health sciences students across six academic programs. The university's geographical position and demographic characteristics offered a representative sample for investigating these factors within the context changing.

Aim

To compare academic and perceived stress and university students' lifestyles at two different periods: (1) during the mandatory social confinement caused by the COVID-19 pandemic with an online learning modality (T1); (2) in the post-pandemic period with a return to face-to-face activities (T2).

Design

An observational, analytical, quantitative, and longitudinal study.

Participants

Students from six programs (Nursing, Physiotherapy, Clinical Laboratory, Medicine, Dentistry, and Clinical Psychology) from the Faculty of Health of the National University of Chimborazo-Ecuador (n = 2,237) participated voluntarily, the students had one mean age of M = 21.31 (SD = 2.36) at T1 and M = 22.94 (SD = 2.40) at T2. Non-probability convenience sampling was employed due to the accessibility of the student population and the importance of including the maximum number of relevant individuals within the study population.

Methods

The following instruments were used: Nola Pender's Lifestyle Profile Questionnaire, Cognitive Systemic Inventory for the study of academic stress, and Cohen's Perceived Stress Scale.

Results

In T1 and T2, students reported high levels of stress, and increased unhealthy lifestyle increased with the return to classrooms. Additionally, upon returning to face-to-face activities (T2), the mean score applied to the responses of Nola Pender's Lifestyle Profile Questionnaire decreased from M = 113.34 (SD = 23.02) to M = 107.2 (SD = 29.70; p < 0.001). There was significant difference (p < 0.001) in academic stress in T1 [M = 66.25 (SD = 15.66)] and T2 [M = 64.00 (SD = 17.91)].

Conclusions

Upon returning to university classrooms (T2), the number of students who reported an "unhealthy" lifestyle increased. Academic stress was high in T1 and T2 and was reported higher in online activities during social isolation.

Preferential Impairment of Auditory Working Memory in Long COVID: An Observational Study of Undergraduate Medical Students

Background Long COVID is a multisystem condition with prolonged symptoms that develop after recovery from the COVID-19 infection, often following a mild infection. Few studies have been conducted on cognitive function among medical students after recovery from mild COVID-19. This study aimed to assess the attention span and working memory (WM) capacity of medical students after six months of recovery. Methods A cross-sectional study was performed on 17 young adult medical students who had suffered a mild COVID-19 infection at least six months prior. Eighteen age-matched healthy medical students served as the controls. Audio-visual WM tasks and attention spans were assessed using computerized software for both the cases and controls. Results The mean ages of the case and control were 19.67±1.6 and 20.0±1.2 years, respectively. The most common symptoms among cases were fatigue (33%), weight loss (26%), and nasal stuffiness (13%). The overall proportion of correct responses across all visual and auditory WM tasks (p=0.085) and reaction times (p=0.609) did not differ between the cases and controls. However, the overall target hit rate of the auditory WM task was significantly lower in cases than in controls (p=0.002). This difference was not observed in the visual WM task (p=0.374). Conclusion In the current study, the overall WM functions (visual and auditory combined) and attention span did not differ between cases and controls. However, auditory WM performance was significantly impaired in patients compared with controls, indicating selective impairment of auditory WM in patients with long COVID.