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Table 4 Results of the longitudinal analysis of non-response

From: Predictors of two forms of attrition in a longitudinal health study involving ageing participants: An analysis based on the Whitehall II study

    Odds Ratio p-value 95% CI
Age    1.08 <0.001 1.07-1.09
Sex Male (baseline)   
  Female   0.60 <0.001 0.48-0.75
Educational level Primary (baseline)   
  Secondary 1.23 0.007 1.06-1.44
  Tertiary   1.67 <0.001 1.41-1.96
Employment grade High (baseline)   
  Middle 2.36 <0.001 2.04-2.72
  Low   5.43 <0.001 4.45-6.63
Retired (in men)   0.48 <0.001 0.41-0.57
  (in women) 0.78 0.007 0.66-0.93
Married (in men)   0.74 <0.001 0.63-0.87
  (in women) 1.25 0.019 1.04-1.51
Homeowner   0.54 <0.001 0.45-0.65
Long-standing illness 0.68 <0.001 0.62-0.74