To estimate the treatment outcomes among individuals treated for hypertension in the public sector in 89 districts across 15 states in India and to identify the risk factors for uncontrolled blood pressure (BP).

An analysis of a cohort of people with hypertension from 2018 to 2022 from public sector health facilities.

All India Hypertension Control Initiative (IHCI) implementing districts using digital information systems across 15 states of India, namely Andhra Pradesh, Bihar, Goa, Gujarat, Jharkhand, Karnataka, Maharashtra, Nagaland, Puducherry, Punjab, Rajasthan, Sikkim, Tamil Nadu, Uttar Pradesh and West Bengal.

Individuals aged 30 years or older, who were diagnosed with hypertension or on medication at the time of registration between 1 January 2018 and 31 December 2021 were included in the study.

Treatment outcomes were controlled BP, uncontrolled BP and missed visits in the reporting quarter (1 January 2022–31 March 2022). We analysed the risk factors for uncontrolled BP.

Out of 1, 235, 453 hypertensive individuals enrolled in the IHCI project across 15 states, 1, 046, 512 remained under care, with 44% BP control. The control varied from 26% to 57% in various types of facilities. The states of Maharashtra, Punjab and Rajasthan had above 50% control, while Nagaland, Jharkhand and Bihar had below 25%. BP control declined from 68% when defined using a single recent reading to 52% when defined using the two-visit readings. Younger individuals (

We documented the implementation of IHCI strategies at scale and measured treatment outcomes in a large cohort. Overall, BP control improved with variations across states. We need focused strategies to improve control in higher-level facilities, among males and people with diabetes. Using two BP readings may support consistent treatment adherence.

The rise of electronic nicotine delivery systems (ENDS) has introduced new challenges to tobacco control and regulation, particularly among young adults, raising questions about their safety. This umbrella review aimed to synthesise existing systematic reviews with or without meta-analyses to evaluate the health impacts of ENDS.

We conducted a systematic literature search via the PICO strategy across multiple databases, focusing on e-cigarettes, ENDS and e-liquids, while excluding non-nicotine e-cigarette and nicotine replacement therapies (NRTs). Health outcomes include a range of clinical diseases and physiological changes. Quality assessment was performed via assessing the methodoligcal quality of systematic reviews 2 (AMSTAR-2), and the findings were synthesised narratively and in tables, prioritising the highest-rated reviews. The meta-analyses used R software (V.4.3) random effects models, and evidence quality was assessed via the Grading of Recommendations, Assessment, Development and Evaluation criteria.

Of the 5055 records, 69 systematic reviews were included. Systematic reviews have indicated increased risks of cardiovascular and respiratory diseases, mental health issues and substance abuse with ENDS use, especially among adolescents. Cardiovascular risk factors included increased heart rate (mean difference (MD) 1.41, 95% CI 0.81 to 2.01, I²=91%) from 25 studies; increased blood pressure (MD for systolic blood pressure=0.51 mm Hg, 95% CI 0.26 to 0.75, I²=89%; MD for diastolic blood pressure=0.59 mm Hg, 95% CI 0.35 to 0.83, I²=82%) from 23 studies; endothelial dysfunction and increased platelet activity. Respiratory risk factors included reduced lung function and a higher incidence of asthma in nine studies (OR 1.30, 95% CI 1.1 to 1.55; I²=43%) and chronic obstructive pulmonary disease. Mental health concerns, such as depression and suicidality, were also prevalent among adolescent ENDS users. Nine studies reported a negative effect of ENDS on periodontal health. Evidence of carcinogens has been found in the urinary examinations of ENDS users in some studies. The adverse events reported in seven randomised controlled trials with 2611 participants were similar between ENDS and NRT (RR 1.13, 95% CI 0.83 to 1.54, I²=12%).

Exposure to ENDS is harmful to various organ systems, especially cardiovascular and respiratory systems. Comprehensive regulatory measures and public health strategies are necessary to curb the use of ENDS, particularly among young people.