FIGURE 6.
Stability of the pattern of cortisol response across two stressors. NBAS = Neonatal Behavioral Assessment Scale, N = 41. An increase of at least .5 of 1 SD of the delta value from pre-to 20-min poststressor defined the increasers, a decrease of at least. 5 of 1 SD defined the decreasers, and the remaining infants were defined as no change. Note that only 1 subject demonstrated a decrease in cortisol in response to the heel stick. Mantel-Haenszel test for linear association = 6.9, df = 1, p<.01.