Nf. Woods et al., Perceived stress, physiologic stress arousal, and premenstrual symptoms: Group differences and intra-individual patterns, RES NURS H, 21(6), 1998, pp. 511-523
The purpose of this study was to examine evidence for perceived stress, hyp
othalamic-pituitary-adrenal, and autonomic nervous system involvement in pr
emenstrual symptoms. Women with a low severity (LS, n = 40), premenstrual s
yndrome (PMS, rr = 22), and premenstrual magnification symptom patterns (PM
M, n = 26) rated perceived stress, turmoil, and fluid retention symptoms fo
r one entire cycle. Daily late afternoon urine samples were assayed for epi
nephrine, norepinephrine, and cortisol. Using multivariate analysis of vari
ance analyses, we found significant group and cycle phase and group by phas
e interaction effects for perceived stress. There were no group or cycle ph
ase differences in cortisol, epinephrine, and norepinephrine. Intraindividu
al analyses using cross-correlation techniques revealed a positive time lag
ged relationship between perceived stress and norepinephrine and cortisol l
evels across all groups. Only women with a PMS pattern demonstrated perceiv
ed stress leading epinephrine levels. Cortisol, epinephrine, and norepineph
rine levels led symptoms for all groups with one exception: there was no cr
oss-correlation between epinephrine and turmoil for the PMS group. Perceive
d stress led both types of symptoms, regardless of group, and symptoms also
led stress. The results provide evidence for a unique relationship between
epinephrine, perceived stress, and symptoms for women with PMS, and for a
reciprocal relationship between stress and symptoms for each of the groups.
(C) 1998 John Wiley & Sons, Inc.