Introduction: Despite proven effectiveness for people with chronic respiratory diseases, practical barriers to attending centre-based pulmonary rehabilitation (centre-PR) limit accessibility. We aimed to review the clinical effectiveness, components and completion rates of home-based pulmonary rehabilitation (home-PR) compared to centre-PR or usual care.Methods and analysis: Using Cochrane methodology, we searched (January 1990 to August 2021) six electronic databases using a PICOS (population, intervention, comparison, outcome, study type) search strategy, assessed Cochrane risk of bias, performed meta-analysis and narrative synthesis to answer our objectives and used the Grading of Recommendations, Assessment, Development and Evaluations framework to rate certainty of evidence.Results: We identified 16 studies (1800 COPD patients; 11 countries). The effects of home-PR on exercise capacity and/or health-related quality of life (HRQoL) were compared to either centre-PR (n=7) or usual care (n=8); one study used both comparators. Compared to usual care, home-PR significantly improved exercise capacity (standardised mean difference (SMD) 0.88, 95% CI 0.32–1.44; p=0.002) and HRQoL (SMD −0.62, 95% CI −0.88–−0.36; p<0.001). Compared to centre-PR, home-PR showed no significant difference in exercise capacity (SMD −0.10, 95% CI −0.25–0.05; p=0.21) or HRQoL (SMD 0.01, 95% CI −0.15–0.17; p=0.87).Conclusion: Home-PR is as effective as centre-PR in improving functional exercise capacity and quality of life compared to usual care, and is an option to enable access to pulmonary rehabilitation.

Pulmonary rehabilitation (PR) is a guideline-recommended multifaceted intervention that improves the physical and psychological well-being of people with chronic respiratory diseases (CRDs), though most of the evidence derives from trials in high-resource settings. In low- and middle-income countries, PR services are under-provided. We aimed to review the effectiveness, components and mode of delivery of PR in low-resource settings. Following Cochrane methodology, we systematically searched (1990 to October 2018; pre-publication update March 2020) MEDLINE, EMBASE, CABI, AMED, PUBMED, and CENTRAL for controlled clinical trials of adults with CRD (including but not restricted to chronic obstructive pulmonary disease) comparing PR with usual care in low-resource settings. After duplicate selection, we extracted data on exercise tolerance, health-related quality of life (HRQoL), breathlessness, included components, and mode of delivery. We used Cochrane risk of bias (RoB) to assess study quality and synthesised data narratively. From 8912 hits, we included 13 studies: 11 were at high RoB; 2 at moderate RoB. PR improved functional exercise capacity in 10 studies, HRQoL in 12, and breathlessness in 9 studies. One of the two studies at moderate RoB showed no benefit. All programmes included exercise training; most provided education, chest physiotherapy, and breathing exercises. Low cost services, adapted to the setting, used limited equipment and typically combined outpatient/centre delivery with a home/community-based service. Multicomponent PR programmes can be delivered in low-resource settings, employing a range of modes of delivery. There is a need for a high-quality trial to confirm the positive findings of these high/moderate RoB studies.

Dengue fever is a major public health concern in Bangladesh with increased incidence during monsoon. We aimed to assess the correlation of temperature, humidity, and rainfall on dengue fever in two dengue endemic cities in Bangladesh. It was a time series analysis of climate factors and dengue occurrence data in Dhaka and Chittagong cities from 1 January 2000 to 31 December 2009. Daily mean temperature, rainfall, and humidity data were obtained from the Bangladesh meteorological department and daily dengue cases data were obtained from the directorate general of health services (DGHS) of Bangladesh. The mean dengue incidence was 31.62 (SD 28.7) per 100,000 in Dhaka whereas it was 5.76 (SD 11.7) per 100,000 population in Chittagong. The incidence of dengue cases was found significantly associated with the monthly mean temperature, total rainfall, and mean humidity in Dhaka, though in Chittagong, the significantly associated factors​ ​​​​​​were monthly total rainfall and mean humidity. The autoregressive integrated moving average (ARIMA) model identified monthly mean humidity and total rainfall as the most significant contributing factors for dengue cases in Dhaka and Chittagong, respectively. Our study reinforces the relationship of climate parameters with dengue fever, which will support policy-makers in developing a climate-based early warning system for dengue in Bangladesh.

Background: Asynchronous digital health (eg, web-based portal, text, and email communication) can overcome practical barriers associated with in-person and remote synchronous (real-time) consultations. However, little is known about the effectiveness and acceptability of asynchronous digital health to support care for individuals with asthma (eg, asthma reviews). Objective: We aimed to systematically review the qualitative and quantitative evidence on the role of asynchronous digital health for asthma care. Methods: Following Cochrane methodology, we searched 6 databases (January 2001-July 2022; search update: September 2023) for quantitative, qualitative, or mixed methods studies supporting asthma care using asynchronous digital health. Screening and data extraction were duplicated. We assessed the risk of bias in the clinical outcomes of randomized controlled trials included in the meta-analysis using the revised Cochrane risk of bias tool. For the remaining studies, we evaluated the methodological quality using the Downs and Black checklist, critical appraisal skills program, and mixed methods appraisal tool for quantitative, qualitative, and mixed methods studies, respectively. We determined the confidence in the evidence using the GRADE (Grading of Recommendations, Assessment, Development, and Evaluation) criteria. We conducted a meta-analysis of trial data and a thematic analysis of qualitative data. Results: We included 30 studies (20 quantitative, 6 qualitative, and 4 mixed methods) conducted in 9 countries involving individuals with asthma, their caregivers, and health care professionals. Asynchronous digital consultations linked with other functionalities, compared to usual care, improved asthma control (standardized mean difference 0.32, 95% CI 0.02-0.63; P=.04) and reduced hospitalizations (risk ratio 0.36; 95% CI 0.14-0.94; P=.04). However, there were no significant differences in quality of life (standardized mean difference 0.16; 95% CI –0.12 to 0.43; P=.26) or emergency department visits (risk ratio 0.83; 95% CI 0.33-2.09; P=.69). Patients appreciated the convenience of asynchronous digital health, though health care professionals expressed concerns. Successful implementation necessitated an organizational approach. Integrative synthesis underscored the ease of asking questions, monitoring logs, and medication reminders as key digital functionalities. Conclusions: Despite low confidence in evidence, asynchronous consultation supported by digital functionalities is an effective and convenient option for nonemergency asthma care. This type of consultation, well accepted by individuals with asthma and their caregivers, offers opportunities for those facing challenges with traditional synchronous consultations due to lifestyle or geographic constraints. However, efficient organizational strategies are needed to manage the associated workload. Trial Registration: PROSPERO CRD42022344224; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=344224 International Registered Report Identifier (IRRID): RR2-10.1371/journal.pone.0281538

Interstitial Lung Disease (ILD) is characterised by dyspnoea, reduced exercise capacity and poor health related quality of life (HRQoL). The evidence to support the benefits of pulmonary rehabilitation (PR) on exercise capacity (EC) and HRQoL in this population is still limited. We aimed to determine the effect of the different PR components on exercise capacity and HRQoL in patients with ILD. We searched five databases (January 1990 to August 2024) using Population: ILD patients; Intervention: PR; Comparison: no PR; Outcomes: exercise capacity (e.g., six-minute walk test [6MWT] and HRQoL (e.g., St George's respiratory questionnaire [SGRQ]); Study type: randomised controlled trials (RCT). We used Cochrane risk-of-bias tool and GRADE to rate the quality of the evidence. We identified 11 RCTs (476 ILD patients; 8 countries). 10 studies provided data for exercise capacity (6MWD) and 7 studies for HRQoL (SGRQ). Both 6MWD and SGRQ improved ≥ their respective mínimum clinically-important difference of 45m and 7 units respectively, in studies where PR programme was i) ˃8 weeks (n=5) [6MWD: MD 58m, 95% CI 37 to 79, p<0.00001; SGRQ: MD -9.7, 95% CI -12.6 to -6.7, p<0.00001], ii) fully supervised [6MWD (n=5): MD 53.6m, 95% CI 39 to 68, p<0.00001; SGRQ (n=2): MD -9.38, 95% CI -12.93 to -5.84, p<0.00001] and iii) incorporated high-intensity interval training (HIIT) (n=2) [6MWD: MD 77m, 95% CI 45 to 109, p<0.00001; SGRQ: MD -10.3, 95% CI -13.7 to -6.9, p<0.00001] INTERPRETATION: PR programs of ˃8 weeks, fully supervised and incorporated HIIT had a better clinical impact on EC and HRQoL.

The prevalence of chronic respiratory diseases (CRDs) in Bangladesh is increasing [1,2]. Their severity, types, and spectrum in low- and middle-income countries (LMICs) differ from those in developed countries [3]. While there are no high-quality estimates of CRDs prevalence in Bangladesh, some studies suggest that there are approximately 10 million people with asthma, six million […]