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Table 6 Logistic regression analyses of biological markers. The table illustrates the final regression models predicting changes (Δ) in the biological markers DHEA-S, NPY, CgA and TNFα.

From: Psychophysiological effects of a web-based stress management system: A prospective, randomized controlled intervention study of IT and media workers [ISRCTN54254861]

Predictors of Δ DHEA OR 95,0% CI for OR Lower – Upper Predictors of Δ NPY OR 95,0% CI for OR Lower – Upper
Ageb .863 .547 – 1.363 Ageb .723 .466 – 1.121
Genderb .527 261 – 1.066 Genderb .533 .273 – 1.042
Marital statusb 1.982 .919 – 4.275 Marital statusb 1.510 .710 – 3.215
Educational levelb 1.368 .700 – 2.672 Educational levelb 1.294 .685 – 2.442
Annual incomeb .740 .415 – 1.321 Annual incomeb 1.404 .807 – 2.442
Groupa, b 1.409 .726 – 2.735 Groupa.b 1.934 1.032 – 3.623
Constant .277   Constant .136  
Predictors of Δ CgA OR 95,0% CI for OR Lower – Upper Predictors of Δ TNFα OR 95,0% CI for OR Lower – Upper
Ageb .643 .411 – 1.006 Ageb .915 .593 – 1.412
Genderb 1.449 .749 – 2.803 Genderb 1.357 .698 – 2.638
Marital statusb .767 .339 – 1.737 Marital statusb .458 .182 – 1.154
Educational levelb .732 .380 – 1.409 Educational levelb 1.508 .778 – 2.925
Annual incomeb .891 .502 – 1.581 Annual incomeb 1.228 .695 – 2.169
Groupa, b .629 .324 – 1.221 Groupa.b 3.185 1.637 – 6.196
Δ Stress managementc 2.343 1.157 – 4.744 Δ Stress managementc .404 .182 – .895
Constant .887   Constant .130  
  1. a Reference group: code 1, intervention group: code 2.
  2. b Baseline values.
  3. c Change in stress management ability. Can you manage your stress in general? (VAS, Not at all – Very well).