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Table 3 Nested and Stepwise Regressions on Self-Protective Behavior (N = 384)

From: Perceptual influences on self-protective behavior for West Nile virus, A survey in Colorado, USA

Model IVs B SE β t p ΔR2 F (df1,2) p
1 age .04 .01 .15 2.95 >.01    
  sex a -1.21 .43 -.14 -2.82 >.01 .03 5.9(2,381) >.01
2 age .05 .01 .19 3.67 >.001    
  sex -1.16 .42 -.13 -2.72 >.01    
  ecology .15 .07 .11 2.10 >.05    
  proximity .31 .10 .15 2.97 >.01 .05 9.3(2,379) >.001
3 age .04 .01 .14 2.76 >.01    
  sex -.71 .42 -.08 -1.68 .093    
  ecology .01 .07 .01 0.13 .890    
  proximity .25 .10 .12 2.38 >.05    
  risk cog. -.41 .17 -.16 -3.21 >.001    
  risk affect .36 .07 .25 4.63 >.001 .07 14.9(2,377) >.001
4 age .03 .01 .13 2.76 >.01    
  sex -.74 .39 -.09 -1.88 .060    
  ecology .05 .07 .04 0.68 .491    
  proximity .12 .10 .06 1.20 .231    
  risk cog. -.23 .12 -.09 -1.89 .058    
  risk affect .18 .08 .13 2.19 >.05    
  suscept .28 .08 .18 3.24 >.001    
  severity .07 .10 .04 0.74 .458    
  benefit .15 .04 .18 3.75 >.001    
  barriers -.06 .03 -.09 -1.75 .081    
  cues .16 .04 .18 3.74 >.001 .14 14.5(5,372) >.001
        .28 13.3(11,372) >.001
Stepwise (forced entry of Ethnicity)      
1 age .04 .01 .15 3.27 >.01    
  risk affect .16 .07 .12 2.27 >.05    
  risk cog. -.27 .12 -.11 -2.37 >.05    
  suscept .31 .08 .19 3.90 >.001    
  benefit .17 .04 .20 4.30 >.001    
  cues .17 .04 .19 4.09 >.001 .27 18.3(8,375) >.001
2 ethnicity b 1.04 .52 .10 1.99 >.05 .01 4.0(1,375) >.05
        .28 18.3(8,375) >.001
  1. 0 = other
  2. a1 = male, 0 = female b 1 = Hispanic/Latino