Objective. Minor illnesses and major diseases are affected by individu
al, environmental, and social factors. The purpose of the study was to
determine if cardiovascular reactivity, an individual characteristic,
was related to adolescent boys' health status and behaviors. Methods.
A total of 89 low socioeconomic status 16-year-old boys who had been
classified using teacher ratings during childhood as anxious, disrupti
ve, anxious-disruptive, or normal participated in a laboratory stress
experiment. Systolic blood pressure (SBP) and diastolic blood pressure
were measured during the Social Competence Interview. Using the upper
and lower quartiles of SBP change scores, 21 boys were classified as
reactors and 20 boys were classified as nonreactors. Subjects were int
erviewed to assess health behaviors and outcomes, as well as stressful
life events. Results. No significant group differences were found for
minor or major physical health problems. A logistic regression analys
is indicated that risky health behaviors were associated with SBP reac
tivity, personality characteristics, and negative life events. Specifi
cally, nonreactors, who were disruptive, had more negative life events
and engaged in more health-compromising behaviors leg, smoking cigare
ttes, unprotected sex), which may contribute to future health problems
leg, cancer, AIDS). Anxious individuals may be more vulnerable to car
diovascular diseases in part because of exaggerated cardiovascular rea
ctivity to stress. Conclusion. Low socioeconomic status boys may be at
risk for different health problems caused by differing personality ch
aracteristics associated with divergent health-related behaviors.