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Table 3 Odds ratios (ORs) (and 95% confidence intervals) from logistic regression where the OR of being 1) a refuser or 2) an informant-only respondent at wave 2 is associated with an increase in the predictor.

From: Predictors of refusal to participate: a longitudinal health survey of the elderly in Australia

Wave 1 Variables Refusers compared to Participants n-716 Informant-only groups compared to Participants n-674
Age 0.96 (0.91–1.03) 1.00 (0.92–1.10)
Sex (males = 1 females = 2) 1.25 (0.72–2.18) 1.21 (0.47–3.08)
Years of education * 1.02 (0.90–1.16) 1.02 (0.82–1.27)
Occupational status (white collar) 0.68 (0.38–1.23) 1.07 (0.42–2.72)
NART* 0.95 (0.92 0.98) 0.94 (0.89–1.00)
MMSE* 0.91 (0.88–1.02) 0.75 (0.63–0.89)
Activities of daily living * 0.90 (0.76–1.07) 1.04 (0.89–1.21)
Sight impairment scale * 1.03 (0.88–1.21) 1.20 (0.98–1.45)
Distressed by interview (no = 1, yes = 2) 2.30 (0.86–6.15) 0.94 (0.16–5.37)
  1. *OR associated with an increase of one unit in the scale.