Table 1 Characteristics of included studies
First author, year published | Country, Study location | No. of participants | Age (y), mean(SD) | Interventions | Methods & Follow-up duration | Outcomes |
|---|---|---|---|---|---|---|
Sathish, 2017 | India, Kerala state | 1007 | 47 (7.5) | Intervention arm received; -Eleven peer led small group sessions -Two diabetes prevention education sessions -Participant handbook and workbook -Health education booklet Control arm received only health education booklet | Cluster randomized controlled trial Maximum follow-up: 24 months | Incidence of diabetes |
Tran, 2017 | Vietnam, Hanam province, 10 communes | 417 | 57 (5) | Intervention group received: four components 1-four educational session 2- an information booklet 3- a resistance band 4- a walking group with a leader. Control group was on the waiting list to receive the intervention after completion of the post-test data collection. | Cluster randomized controlled trial Maximum follow-up: 6 months | Anthropometric indices, glycemic control, Blood pressure |
Hu Zhao, 2017 | China, Hunan Province, 42 villages of Yiyang City | 434 | 69.3 (6.5) | Intervention Group were given an intense synthetic intervention: The synthetic intervention model included lifestyle education, lifestyle intervention, training for the self-monitoring of blood glucose and setting up a Help Each Other Group (HEOG). Control group were given standard primary care. | Cluster randomized controlled trial Maximum follow-up: 12 months | Incidence of diabetes, blood pressure, anthropometric indices, glycemic control |
Limaye, 2016 | India, Pune, two multinational IT industries | 265 | 36 (9) | Intervention group received LIMIT program (LIfestyle Modification in IT); mobile phone and e-mail (virtual assistance)-based lifestyle intervention using combination of messages and emails to promote healthy lifestyle behaviours. Control group received no educational program. | Individuals randomized controlled trial Maximum follow-up: 12 months | Blood pressure, anthropometric indices, glycemic control |
Ramachandran, 2013 | India, 10 sites in southeast India | 537 | 46 (4.7) | Intervention group: individually tailored mobile phone messaging including personalized education and motivation about healthy lifestyle principles, diet and physical activity. Control group: standard lifestyle modification advice at baseline | Individuals randomized controlled trial Maximum follow-up: 24 months | Incidence of diabetes, blood pressure, anthropometric indices |
Pimentel, 2010 | Brazil, Lins city in southeast Brazil | 67 | 56 (12) | Intervention group received the dietary intervention consisted of discussion-format group sessions twice per month and individual sessions once per month to improve healthy behaviours. Control group received no program | Individuals randomized controlled trial Maximum follow-up: 12 months | Anthropometric indices, glycemic control |