"You need good links and good networks, and we work with public health nurses, Plunket nurses, iwi organisations, Tamariki Ora and early childhood education centres,"
Metcalfe said the B4 School programme was piloted in Whanganui in 2008 before being rolled out across New Zealand in 2010.
She was pleased with the 2018-2019 figures as she said the Whanganui programme achieved equity for Asian, Pasifika and Maori four-year-olds with all registering over 100 per cent against the target.
Families choosing to decline checks had also decreased.
"This enforces that our families and whānau accept and value the contribution of B4 School checks to their child's health and development before starting primary school," Metcalfe said.
Whanganui has also achieved the Ministry of Health target of 95 per cent of four-year-olds who were identified as clinically obese are being referred for ongoing growth management and monitoring.