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Reactivity and Vulnerability to Stress-Associated Risk for Upper Respiratory Illness

From the Department of Psychology (S.C., N.H.), Carnegie Mellon University, Pittsburgh, PA; Research and Development (M.S.R.), Psychological Assessment Resources, Inc., Lutz, FL; Department of Epidemiology and Public Health (P.J.F.), University College London Medical School, London, UK; Departments of Pathology and Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA (B.S.R.); and Department of Psychology (S.B.M.), University of Pittsburgh, Pittsburgh, PA.

View larger version (14K): [in a new window]   Fig. 1. Percentage of participants who experienced a verified cold episode at any time during the 12-week follow-up period as a function of level of baseline negative life event and cortisol reactivity scores.

View larger version (17K): [in a new window]   Fig. 2. Percentage of observations (diaries) with a self-reported cold during the current week of the follow-up period as a function of current weekly perceived stress and baseline measures of (A) NK cytotoxicity reactivity; (B) CD8+ cell number reactivity; and (C) NK cell number reactivity.

View larger version (19K): [in a new window]   Fig. 3. Percentage of observations (diaries) with a self-reported cold during the current week of the follow-up period as a function of current weekly perceived stress and baseline CD4+/CD8+ cell number reactivity scores.