Michelle Helena van Velthoven

Li Chen8
Wei Wang7
8Li Chen
7Wei Wang
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BACKGROUND An effective data collection method is crucial for high quality monitoring of health interventions. The traditional face-to-face data collection method is labor intensive, expensive, and time consuming. With the rapid increase of mobile phone subscribers, text messaging has the potential to be used for evaluation of population health(More)
The use of mobile devices in healthcare, or mHealth, has the potential to play an important role in low- and middle-income countries in a wide range of areas. A particular area with great potential to improve global health is using mHealth for data collection. We propose three ideas: (i) to validate and conduct household surveys, (ii) to monitor large-scale(More)
BACKGROUND Face-to-face interviews by trained field workers are commonly used in household surveys. However, this data collection method is labor-intensive, time-consuming, expensive, prone to interviewer and recall bias and not easily scalable to increase sample representativeness. OBJECTIVE To explore the feasibility of using text messaging to collect(More)
BACKGROUND An important issue for mHealth evaluation is the lack of information for sample size calculations. OBJECTIVE To explore factors that influence sample size calculations for mHealth-based studies and to suggest strategies for increasing the participation rate. METHODS We explored factors influencing recruitment and follow-up of participants(More)
OBJECTIVE To test the effectiveness of multiple interventions on increasing the response rate of text messaging for longitudinal data collection. METHODS Our cohort included 283 caregivers of children aged 6-12 months who were participating in an anemia program in rural China. Using text messages to collect data on anemia medication adherence, we(More)
BACKGROUND We set up a collaboration between researchers in China and the UK that aimed to explore the use of mHealth in China. This is the first paper in a series of papers on a large mHealth project part of this collaboration. This paper included the aims and objectives of the mHealth project, our field site, and the detailed methods of two studies. (More)
BACKGROUND Electronic medical records (EMR) offer a major potential for secondary use of data for research which can improve the safety, quality and efficiency of healthcare. They also enable the measurement of disease burden at the population level. However, the extent to which this is feasible in different countries is not well known. This study aimed to:(More)
BACKGROUND The aim of this study was to assess the effectiveness of an EPI smartphone application (EPI app) on improving vaccination coverage in rural Sichuan Province, China. METHODS This matched-pair cluster randomized controlled study included 32 village doctors, matched in 16 pairs, and took place from 2013 to 2015. Village doctors in the intervention(More)
BACKGROUND Postnatal care is an important link in the continuum of care for maternal and child health. However, coverage and quality of postnatal care are poor in low- and middle-income countries. In 2009, the Chinese government set a policy providing free postnatal care services to all mothers and their newborns in China. Our study aimed at exploring(More)
AIM To assess the quality of outpatient pediatric care provided by township and village doctors, prevalence of common childhood diseases, care-seeking behavior, and coverage of key interventions in Zhao County in China. METHODS We conducted two cross-sectional surveys: 1) maternal, newborn, and child health household survey including1601 caregivers of(More)
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