Skeletal maturity of the hand and wrist (Tanner-Whitehouse II system) was assessed in a sample of 394 school children 5 to 18 years of age, in the city of Oaxaca, Mexico. The socio-economic background of the sample was relatively poor and the group appeared to have a poor nutritional history (via height and weight measurements). At most ages, the mean skeletal ages of Oaxaca school children are below the British means, and about 60 per cent of the children have skeletal ages below their chronological ages.
Bibliographical noteFunding Information:
This research was supported in part by a summer research grant from the Institute of Latin American Studies of the University of Texas at Austin. Grateful appreciation is extended to Art Murphy and Alex Stepick for their assistance in obtaining the co-operation of the colonia authorities.