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Implementation of a comprehensive intervention for patients at high risk of cardiovascular disease in rural China: A pragmatic cluster randomized controlled trial.

Implementation of a comprehensive intervention for patients at high risk of cardiovascular disease in rural China: A pragmatic cluster randomized controlled trial.
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Wei X, Walley JD, Zhang Z, Zou G, Gong W, Deng S, Harries AD, Hicks JP, Chong MKC, Newell JN, Zhong J, Yu M,


Wei X, Walley JD, Zhang Z, Zou G, Gong W, Deng S, Harries AD, Hicks JP, Chong MKC, Newell JN, Zhong J, Yu M, (click to view)

Wei X, Walley JD, Zhang Z, Zou G, Gong W, Deng S, Harries AD, Hicks JP, Chong MKC, Newell JN, Zhong J, Yu M,

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PloS one 2017 08 1612(8) e0183169 doi 10.1371/journal.pone.0183169
Abstract
OBJECTIVE
This study aims to assess whether a standard intervention package of cardiovascular disease (CVD) care was being delivered effectively, and if it was associated with improved lifestyle and biomedical indicators.

METHODS
In rural China, we implemented a pragmatic cluster randomized controlled trial for 12 months, randomized at the township hospital level, and compared with usual care. Intervention case management guideline, training and performance monitoring meeting and patient support activities were designed to fit within the job description of family doctors in the township hospitals and comprised: 1) prescription of a standardised package of medicines targeted at those with hypertension or diabetes; 2) advice about specific lifestyle interventions; and 3) advice about medication adherence. Participants were 50-74 years old, had hypertension and CVD risk scores >20% or diabetes, but were excluded if a history of severe CVD events. We also randomly selected 100 participants from six selected clusters per arm as a panel to collect intermediate biomedical indicators over time.

RESULTS
A total of 28,130 participants, in 33 intervention and 34 control township hospitals, were recruited. Compared with the control arm, participants in the intervention arm had substantially improved prescribing rates of anti-hypertensives, statins and aspirin (P<0.001), and had higher medication taking rates of aspirin and statins (P<0.001). Mean systolic and diastolic blood pressures were similar across both arms (0.15 mmHg, P = 0.79, and 0.52 mmHg, P = 0.05, respectively). In the panel, (950) rates of smoking (OR = 0.23, P = 0.02) and salt intake (OR = 2.85, P = 0.03) were significantly reduced in the intervention versus control arms, but there were no statistically significant improvement over the 12 month follow-up period in biomedical indicators (P>0.05).

CONCLUSION
Implementation of the package by family doctors was feasible and improved prescribing and some lifestyle changes. Additional measures such as reducing medication costs and patient education are required.

TRIAL REGISTRATION
Current Controlled Trials ISRCTN58988083.

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