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

BMC Public Health

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

	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

ISSN: 1471-2458