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Table 4 Independent variables entered in the different steps of the logistic and linear regression analyses.

From: Predictors of self-rated health: a 12-month prospective study of IT and media workers

Step (methods logistic/linear regression) Independent variables at baseline
Step 1 (Enter) Socioeconomic variables: Age, sex, education, annual income, study group (intervention vs. reference group).
Step 2 (Forward conditional/Forward) Behavioural factors: Number of logins to the website, smoking habits, alcohol consumption, eating habits, physical activity, working hours.
Step 3 (Forward conditional/Forward) Psychosocial/cognitive/personality factors: SRH, sleep, concentration ability, mental energy, stress frequency, stress management ability, leisure time, goals, sense of coherence, belief in the future, self-esteem, social support, work mood, reward, and ability to influence work.
Step 4 (Forward conditional/Forward) Physiological markers: BMI, triglycerides, cholesterol, HDL, CRP (c-reactive protein), DHEA (dehydroepiandosterone), GH (growth hormone), cortisol, TSH (thyroid stimulating hormone), fibrinogen.
  1. Dependent variables were SRHincrease vs. worsening & ΔSRH12 months-baseline