Simple tricoloured measuring tapes for identification of low birthweight babies by community health workers.

A total of 446 singleton neonates were subjected to measurements of birthweight, chest circumference (CC) and mid-arm circumference (MAC). A high degree of correlation between birthweight and CC as well as MAC was observed. Chest circumference correlated better with birthweight than MAC. Further analysis of data showed that CC measurements of less than or equal to 30.0 cm and less than or equal to 27.5 cm reliably identify neonates less than 2500 g and less than 2000 g, respectively, with a high degree of specificity and predictive value. The corresponding values for MAC were less than or equal to 9.0 cm and less than or equal to 8.5 cm, respectively. Using these inferences, two tricoloured measuring tapes, one each for CC and MAC, are proposed as simple screening tools for use by primary health workers for identifying low-birthweight neonates in the community without resorting to weighing scales.