INTRODUCTION Over the last few decades, the backbone of monitoring child health has been the use of growth chart and childcare records (King, M. 1978). These have been more widely used in developing countries than in developed countries because of lower accessibility of health services. Since the universal promotion of Primary Health Care in 1978 (WHO/UNICEF, 1978), there has been an increase in the investment on child health monitoring, albeit insufficient, especially in deprived communities of both developing and developed countries. In New Zealand, monitoring of child health have been systematically developed throu