Effectiveness of eHealth-based cognitive behavioural therapy on depression: A systematic review and meta-analysis.

AIMS AND OBJECTIVES: To systematically appraise the effects of eHealth cognitive behavioural therapy on depression and anxiety severity, quality of life, adherence and attrition rates observed in adults with clinically diagnosed depression. BACKGROUND: eHealth-based cognitive behavioural therapy is an increasingly popular intervention on depression, but current reviews investigating the effects of eHealth interventions on depression are not exclusive to the clinically depressed. DESIGN: A systematic review and meta-analysis. METHODS: Following the PRISMA guidelines, a systematic search of randomised controlled trials related to eHealth cognitive behavioural therapy published from inception from six databases and three trial registries was undertaken. RESULTS: A total of 15 studies were included in this systematic review. The meta-analysis revealed that, when compared to passive comparators, eHealth cognitive behavioural therapy had a statistically significant effect on depression (d = -0.62, 95% CI: -0.96 to -0.28, p = .0003) and anxiety severity (d = -0.65, 95% CI: -1.10 to -0.21, p = .004) but not for quality of life (d = 0.30, 95% CI: -0.09 to 0.07, p = .13). When compared to active comparators, a statistically significant effect on depression (d = -0.31, 95% CI: -0.55 to -0.07, p = .01) and anxiety severity (d = -0.50, 95% CI: -0.81 to -0.19, p = .002) was observed, but not for quality of life (d = 0.22, 95% CI: -0.04 to 0.48, p = .10). Weighted averages for adherence and attrition rates were low. CONCLUSION: eHealth cognitive behavioural therapy showed effectiveness in reducing depression and anxiety severity, but not quality of life. Further research is required to culturally adapt CBT interventions and explore the long-term benefits of eHealth cognitive behavioural therapy. RELEVANCE TO CLINICAL PRACTICE: The use of eHealth-based cognitive behavioural therapy could potentially bridge treatment gaps and serve as an adjunct to active treatment plans or an alternative for those without access to treatment.

Titres and neutralising capacity of SARS-CoV-2-specific antibodies in human milk: a systematic review.

OBJECTIVE: Synthesise evidence on production of SARS-CoV-2 antibodies in human milk of individuals who had COVID-19, and antibodies' ability to neutralise SARS-CoV-2 infectivity. DESIGN: A systematic review of studies published from 1 December 2019 to 16 February 2021 without study design restrictions. SETTING: Data were sourced from PubMed, MEDLINE, Embase, CNKI, CINAHL and WHO COVID-19 database. Search was also performed through reviewing references of selected articles, Google Scholar and preprint servers. Studies that tested human milk for antibodies to SARS-CoV-2 were included. PATIENTS: Individuals with COVID-19 infection and human milk tested for anti-SARS-CoV-2 neutralising antibodies. MAIN OUTCOME MEASURES: The presence of neutralising antibodies in milk samples provided by individuals with COVID-19 infection. RESULTS: Individual participant data from 161 persons (14 studies) were extracted and re-pooled. Milk from 133 (82.6%) individuals demonstrated the presence of anti-SARS-CoV-2 immunoglobulin A (IgA), IgM and/or IgG. Illness severity data were available in 146 individuals; 5 (3.4%) had severe disease, 128 (87.7%) had mild disease, while 13 (8.9%) were asymptomatic. Presence of neutralising antibodies in milk from 20 (41.7%) of 48 individuals neutralised SARS-CoV-2 infectivity in vitro. Neutralising capacity of antibodies was lost after Holder pasteurisation but preserved after high-pressure pasteurisation. CONCLUSION: Human milk of lactating individuals after COVID-19 infection contains anti-SARS-CoV-2-specific IgG, IgM and/or IgA, even after mild or asymptomatic infection. Current evidence demonstrates that these antibodies can neutralise SARS-CoV-2 virus in vitro. Holder pasteurisation deactivates SARS-CoV-2-specific IgA, while high-pressure pasteurisation preserves the SARS-CoV-2-specific IgA function.