Objectives: To describe the prevalence and distribution of anxiety and depression among Mexican population, and to examine its association with internet addiction during the COVID-19 outbreak. Design:A web-based cross-sectional study. Setting: General population in México.Participants: 561 subjects were recruited (71% female, mean age 30.7 ± 10.6 years). Interventions: An online survey to assess personal attitudes and perceptions towards COVID-19, sleep-disorders related, the Mexican version of the Hospital Anxiety andDepression Scale (HADS) and the Internet Addiction Test (IAT) was applied.Primary and secondary outcome measures: Prevalence of anxiety, depression, internet addiction and sleep disorders and associated factors. Also, prevalence for anxiety and depression were compared to an historic control group. Results:During the initial phase of the COVID-19 pandemic the prevalence for anxiety and depression was 50% (95% CI, 45.6% to 54.1%) and 27.6%, (95% CI 23.8% to 31.4%), respectively. We found a 51% (33% to 50%) increase in anxiety and up to 86% increase in depression during the initial weeks of the lock-down compared to the control group.According to the IAT questionnaire, 62.7% (95% CI 58.6% to 68.8%) of our population had some degree of internet addiction. Odds ratio for development of anxiety symptoms was 2.02 (95% CI1.56-2.1, p=0.0001) and for depression was 2.15 (95% CI 1.59-2.9, p=0.0001). In the multivariate analysis, younger age (p=0.006), sleep problems (p=0.000), and internet addiction ( p=0.000) were associated with anxiety and depression.

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ObjectiveA minimum of physical activity and low liquid intake are factors that have been associated with constipation. The health emergency brought on by the COVID-19 pandemic has resulted in adopting behaviour, such as sheltering-in-place (less mobility) and dietary changes, creating a scenario we believe to be an adequate model for examining the appearance of symptoms of constipation and its associated factors.DesignA cross-sectional and descriptive study was conducted on an open population, applying an electronic survey (4 weeks after lockdown due to COVID-19 in Mexico) to evaluate demographic characteristics, physical activity, water and fibre intake, appearance of constipation symptoms (including stool consistency), and quality of life.ResultsOut of 678 subjects evaluated, 170 (25%, 95% CI: 21.7 to 28.4) developed symptoms of ‘new-onset’ constipation, with a significant decrease in the number of daily bowel movements (p<0.05) and stool consistency (p<0.05) during lockdown. Furthermore, in the ‘new-onset’ constipation population there was a higher proportion of subjects (79 (47%) of 170) who stopped exercising during the pandemic compared with the subjects who did not develop constipation symptoms (187 (37%) of 508, p=0.03, OR: 1.49, 95% CI: 1.0 to 2.1). The multivariate analysis (logistic regression) showed that female sex (p=0.001), water intake (p=0.039), and physical activity (p=0.012) were associated with ‘new-onset’ constipation.ConclusionsIn our study on an open population in Mexico, we found that one-fourth of the population developed ‘new-onset’ constipation symptoms during the lockdown imposed due to the COVID-19 pandemic. A reduction of physical activity and less water consumption were associated factors.

Pemphigus is a rare autoimmune disease that causes blistering of the skin and oral mucosa. In bullous pemphigoid (BP), skin involvement is predominant, whereas oesophageal involvement is rare, compared with other blistering diseases. We present, herein, the case of a 67-year-old man with a history of successfully treated BP that 2 years later developed progressive dysphagia, unintentional weight loss and iron deficiency anaemia. An endoscopy with biopsies was performed, and its findings were consistent with ‘sloughing esophagitis’ (esophagitis dissecans superficialis) associated with BP. Oesophageal involvement was present during the first weeks, making our case unusual due to the isolated oesophageal symptoms that developed 24 months later.

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