Jk. Kiecoltglaser et al., MARITAL CONFLICT IN OLDER ADULTS - ENDOCRINOLOGIC AND IMMUNOLOGICAL CORRELATES, Psychosomatic medicine, 59(4), 1997, pp. 339-349
Objective: To assess endocrinological and immunological correlates of
marital conflict and marital satisfaction, 31 older couples (mean age
67 years) who had been married an average of 42 years were studied. Me
thod: Couples were admitted to the Clinical Research Center and a cath
eter was placed in each subject's arm. Blood was drawn on entry for im
munological assays; for hormone analyses, five blood samples were draw
n during a 30-minute conflict discussion and a 15-minute recovery sess
ion. The conflict session was recorded on videotapes that were later c
oded for problem-solving behaviors using the Marital Interaction Codin
g System (MICS), Results: Among wives, escalation of negative behavior
during conflict and marital satisfaction showed strong relationships
to endocrine changes, accounting for 16% to 21% of the variance in the
rates of change of cortisol, adrenocorticotropic hormone (ACTH), and
norepinephrine (but not epinephrine). In contrast, husbands' endocrine
data did not show significant relationships with negative behavior or
marital quality. Both men and women who showed relatively poorer immu
nological responses across three functional assays (the blastogenic re
sponse to two T-cell mitogens and antibody titers to latent Epstein-Ba
rr virus) displayed more negative behavior during conflict; they also
characterized their usual marital disagreements as more negative than
individuals who showed better immune responses across assays. Conclusi
on: Abrasive marital interactions may have physiological consequences
even among older adults in long-term marriages.