Indonesia Demographic and Health Surveys show that the ownership of home-based immunization records among children aged 12–23 months increased from 30.8% in 1997 and 30.7% in 2002–3 to 37% in 2007. In 2002–3, 70.9% of children who owned records had received all vaccines by the time of the survey, whereas 42.9% of children who did not own records had been fully immunized. An Indonesian ministerial decree of 2004 stated that the Maternal and Child Health Handbook (MCH handbook) was to be the only home-based record of maternal, newborn and child health. The increased immunization coverage seen would be a reflection of MCH handbook implementation, through raising awareness of immunization among community and health personnel and children's parents or guardians and allowing more accurate measurement of immunization coverage.