Table 3.

Relationships of Objective and Subjective BC Risks with NKCA controlling for Covariates

	Model	R2	AdjR2	B	β	p
NKCA 100:1
Step 1: Covariates	F(3,106) = 9.909,	0.219	0.197
Sleep Hours	p < .001***			1.486	0.305	.001**
Current Birth Control Use				2.955	0.228	.013*
Menopause Status				3.965	0.280	.003**
Step 2: BC Risk	F(5,104) = 5.995,	0.224	0.186
Objective Risk	p < .001***			−0.016	−0.015	.881
Subjective Risk				−0.115	−0.063	.515
	ΔR2 = 0.005, ΔF =0.316 (ns)
NKCA 50:1
Step 1: Covariates	F(1,113) = 8.728,	0.072	0.063
Current Birth Control Use	p = .004**			2.313	0.268	.004**
Step 2: BC Risk	F(3,111) = 3.079,	0.077	0.052
Objective Risk	p = .030*			−0.012	−0.016	.865
Subjective Risk				−0.079	−0.064	.506
	ΔR2 = 0.005, ΔF =0.308 (ns)
NKCA 25:1
Step 1: Covariates	F(1,113) = 6.962,	0.058	0.050
Current Birth Control Use	p = .010*			1.595	0.241	.010*
Step 2: BC Risk	F(3,111) = 3.261,	0.081	0.056
Objective Risk	p = .024*			−0.085	−0.150	.120
Subjective Risk				−0.005	−0.006	.953
	ΔR2 = 0.023, ΔF =1.386 (ns)
NKCA 12.5:1
Step 1: Covariates	F(1,113) = 3.988,	0.034	0.026
Current Birth Control Use	p = .048*			0.899	0.185	.048*
Step 2: BC Risk	F(3,111) = 3.702,	0.091	0.066
Objective Risk	p = .014*			−0.103	−0.247	.011*
Subjective Risk				0.021	0.031	.748
	ΔR2 = 0.057, ΔF =3.472 (p= .034*)

Note.

^*p < .05,

^**p < .01,

^***p < .001, ns = not significant.

Current birth control use: 0 for yes & 1 for no.

Menopause status: 0 for premenopause & 1 for postmenopause.