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Table 4 Adjusted Odds Ratio (AOR) and 95% confidence intervals (CI) for likelihood of registering as coaching participants

From: Using mass-media communications to increase population usage of Australia’s Get Healthy Information and Coaching Service®

   Total N Coaching Model 1 Media exposure   Model 2 Referral sources   Model 3 SE, referral sources   Model 4 SE, media exposure   Model 5 SE, media exposure & referral sources
n %
Gender Female (ref) 4661 2846 61.1          
  Male 1714 873 50.9      0.72 (0.64-0.81) ** 0.70 (0.63-0.79) ** 0.72 (0.64-0.81)
Age Groups 18-49 years (ref) 3485 2021 58.0          
  50+ years 2890 1698 58.8      0.97 (0.87-1.09) NS 1.00 (0.89-1.11) NS 0.98 (0.87-1.09)
Aboriginal Non Aboriginal (ref) 6197 3609 58.2          
  Aboriginal 178 110 61.8      1.23 (0.90-1.68) NS 1.13 (0.83-1.55) NS 1.21 (0.88-1.66)
Language English (ref) 5858 3473 59.3          
  Other 517 246 47.6      0.96 (0.78-1.19) NS 0.94 (0.76-1.16) NS 0.97 (0.78-1.20)
Education High school education (ref) 2714 1551 57.1          
  Tertiary 3541 2155 60.9      1.24 (1.12-1.39) ** 1.25 (1.12-1.39) ** 1.24 (1.12-1.39)
Employment Employed (ref) 3664 2096 57.2          
  Other 2588 1609 62.2      1.28 (1.14-1.43) ** 1.27 (1.14-1.42) ** 1.27 (1.13-1.42)
SEIFA 1st/2nd/3rd-quintile - most advantaged (ref) 3552 2122 59.7          
  4th & 5th-quintile-most disadvantage 2823 1597 56.6      0.93 (0.83-1.03) NS 0.94 (0.84-1.04) NS 0.93 (0.83-1.03)
Region Major Cities (ref) 3770 2234 59.3          
  Other 2605 1485 57.0      0.93 (0.83-1.04) NS 0.97 (0.87-1.08) NS 0.93 (0.83-1.04)
Referral Other (ref) 1294 852 65.8          
  Radio 73 40 54.8    0.63 (0.39-1.01) NS 0.72 (0.44-1.16) NS    0.74 (0.45-1.19)
  Press 858 448 52.2    0.57 (0.48-0.68) ** 0.60 (0.49-0.71) **    0.60 (0.50-0.72)
  Web 392 171 43.6    0.40 (0.32-0.51) ** 0.40 (0.32-0.51) **    0.41 (0.32-0.52)
  Mail out 680 449 66.0    1.02(0.83-1.23) NS 1.03 (0.84-1.25) NS    1.00 (0.82-1.22)
  TV 2928 1717 58.6    0.74 (0.64-0.84) ** 0.76 (0.66--0.87) **    0.70 (0.69--0.91)
Media exposure None(ref) 677 454 67.1          
Medium level 1599 966 60.4 0.75 (0.62-0.91) *      0.78 (0.64-0.94) * 0.88 (0.72-1.06)
  High level 4099 2299 56.1 0.63 (0.53-0.75) **      0.69 (0.58-0.82) ** 0.76 (0.63-0.91)
  1. Ref: Reference. SEIFA: Socio-Economic Index for Areas, SE Socio-economic variables ** Significant at p < 0.001, * Significant at p < 0.05, NS: not significant.
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BMC Public Health

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