Child stimulation intervention fosters early child development in rural Peru

Scientists from the Swiss Tropical and Public Health Institute (Swiss TPH) and the Peruvian Instituto de Investigación Nutricional (IIN) adapted the urban-based Peruvian National Early Child Development Programme (Wawa Wasi) and brought it to the doorstep of people living in the rural Cajamarca region. In a community-randomised trial they showed that children aged 6 to 35 months whose mothers playfully interacted with them for half an hour daily performed up to 23% better in categories such as expression of feeling and emotions, fine motor skills or verbal and non-verbal communication than the control group. "Our findings are important because we showed that the national Peruvian programme also succeeds in the rural and impoverished areas," says Claudio Lanata from IIN and co-author of the study.

Possible Impact on Poverty Reduction

The findings contribute to the new Early Child Development Programme (Cuna Mas), which is especially tailored to the rural and impoverished regions. Stimulating the human brain at a very early stage in life might positively affect child development and might be an effective corrective in early child development between rich and poor families.

"We hope that these simple and home-based interventions might reduce inequalities between poor and better-off families and give the disadvantaged children a better start in life," comments Stella Hartinger-Peña, co-director of the Swiss TPH – Cayetano Health Research Platform.

Early Child Development as a Prerequisite for Future Health Development

The 509 children in the study were assigned either to the child development programme (258) or received an intervention to improve kitchen- and household hygiene at their homes (251). The children were evaluated at the beginning and at the end of the study for overall performance in seven psycho-motor developmental domains.

"The results have major implications also for future health research," emphasises Daniel Mäusezahl from Swiss TPH. "Hygiene education and preventive measures against infectious diseases are much more successful if physical, emotional and cognitive development are well taken care of in young children."


About the Swiss Tropical and Public Health Institute (Swiss TPH)

The Swiss Tropical and Public Health Institute (Swiss TPH) is Switzerland's leading public and global health institution. Associated with the University of Basel, the Institute combines research, teaching and service provision at local, national and international level. Swiss TPH has more than 700 employees and students working in 22 countries.

About IIN

The Instituto de Investigación Nutricional (Nutritional Research Institute -IIN) is a non-profit organisation dedicated to health and nutrition research, teaching and training. Its health specialists develop new areas of research and interventions to fight malnutrition and related illnesses with preference to impoverished populations in Peru and other countries. IIN's mission is to generate new knowledge and scientific results that help to improve the living standard of underprivileged populations in collaboration with the Ministries of Health and Education, public and private institutions as well as the local communities.


UBS Optimus Foundation


Stella M. Hartinger, Claudio F. Lanata, Jan Hattendorf, Jennyfer Wolf, Ana Gil, Mariela Obando, Magaly Noblega, Hector Verastegui, Daniel Mäusezahl. – Impact of a child stimulation intervention on early child development in rural Peru: A cluster randomised trial using a reciprocal control design, Journal of Epidemiology and Community Health (2016), DOI: 10.1136/jech-2015-206536


Dr Daniel Mäusezahl, Study leader, Swiss Tropical and Public Health-Institute (Swiss TPH), Tel. +41 61 284 81 78, [email protected]

Dr Claudio F. Lanata, Study co-investigator, Instituto de Investigación Nutricional, (IIN), [email protected]

Dr Stella M. Hartinger-Peña, Universidad Peruana Cayetano Heredia (UPCH), [email protected]

Media Contact

Daniel Mäusezahl
[email protected]

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