Community health worker-led, technology-enabled private sector intervention for diabetes and hypertension management among urban poor: a retrospective cohort study from large Indian metropolitan city.

OBJECTIVES

We assessed the effectiveness of community health workers (CHWs)-led, technology-enabled programme as a large-scale, real-world solution for screening and long-term management of diabetes and hypertension in low-income and middle-income countries.

DESIGN

Retrospective cohort design.

SETTING

Forty-seven low-income neighbourhoods of Hyderabad, a large Indian metropolis.

PARTICIPANTS

Participants (aged ≥20 years) who subscribed to an ongoing community-based chronic disease management programme employing CHWs and technology to manage diabetes and hypertension.

PRIMARY AND SECONDARY OUTCOME MEASURES

We used deidentified programme data between 1 March 2015 and 8 October 2018 to measure participants' pre-enrolment and post-enrolment retention rate and within time-interval mean difference in participants' fasting blood glucose and blood pressure using Kaplan-Meier and mixed-effect regression models, respectively.

RESULTS

51 126 participants were screened (median age 41 years; 65.2% women). Participant acquisition rate (screening to enrolment) was 4%. Median (IQR) retention period was 163.3 days (87.9-288.8), with 12 months postenrolment retention rate as 16.5% (95% CI 14.7 to 18.3). Reduction in blood glucose and blood pressure levels varied by participants' retention in the programme. Adjusted mean difference from baseline ranged from -14.0 mg/dL (95% CI -18.1 to -10.0) to -27.9 mg/dL (95% CI -47.6 to -8.1) for fasting blood glucose; -2.7 mm Hg (95% CI -7.2 to 2.7) to -7.1 mm Hg (95% CI -9.1 to -4.9) for systolic blood pressure and -1.7 mm Hg (95% CI -4.6 to 1.1) to -4.2 mm Hg (95% CI -4.9 to -3.6) for diastolic blood pressure.

CONCLUSIONS

CHW-led, technology-enabled private sector interventions can feasibly screen individuals for non-communicable diseases and effectively manage those who continue on the programme in the long run. However, changes in the model (eg, integration with the public health system to reduce out-of-pocket expenditure) may be needed to increase its adoption by individuals and thereby improve its cost-effectiveness.