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Table 3 Hierarchical multiple regression analysis of Adherence to OCP on psychological predictors

From: Adherence to the oral contraceptive pill: a cross-sectional survey of modifiable behavioural determinants

  R2 ΔR2 B β F change Lower 95% CI B Upper 95% CI B
  0.44** 0.44**    29.83   
Step 1        
  Intention    0.001 0.002   −0.114 0.116
  PBC    −0.374 −0.651   −0.460 −0.287
  Anticipated regret    0.040 0.110   −0.011 0.091
Step 2 0.45** 0.01    0.57   
  Intention    0.004 0.005   −0.113 0.121
  PBC    −0.357 −0.622   −0.450 −0.265
  Anticipated regret    0.040 0.111   −0.011 0.091
  Necessity beliefs    −0.030 −0.053   −0.124 0.063
  Concern beliefs    0.055 0.094   −0.049 0.160
Step 3 0.48** 0.03    2.97   
  Intention    0.047 0.061   −0.074 0.167
  PBC    −0.354 −0.617   −0.446 −0.262
  Anticipated regret    0.038 0.104   −0.013 0.089
  Necessity    −0.045 −0.078   −0.140 0.051
  Concerns    0.065 0.109   −0.038 0.168
  Action planning    0.032 0.084   −0.049 0.113
  Coping planning    −0.097 −0.232   −0.186 −0.008
  1. **p< 0.01; *p< 0.05; 2206;R2= R2 change; B =Beta; β = Standardized Beta.