The measure tracked by this subobjective is identical to one of the measures monitored by Healthy People 2000 objective 14.5 and Healthy People 2010 objective 16-10b.
A description of the very low birth weight measurement has been published by NCHS.1
1. Heck, K.E., and Klein, R.J. Operational definitions for year 2000 objectives: Priority area 14, Maternal and Infant Health. Healthy People 2000 Statistical Note. No. 14. Hyattsville, MD: NCHS, 1998.