Indoor Tanning within UK Young Adults: An Extended Theory of Planned Behaviour Approach

Table 4

Hierarchical regressions of the predictors of IT intention and behaviour.

Predictor						CI 95% for 𝐵
	𝑅^2	Δ𝑅^2	𝐹	Beta	𝑡	Lower 𝐵	Upper 𝐵
Intentions
(1)	.079	.069	7.905***
PBC				.210	3.325**	.075	.294
Attitude				.152	2.340*	.015	.180
SN				−.030	−.453	−.081	.051
(2)	.166	.144	7.755***
PBC				.132	2.051*	.005	.227
Attitude				.074	1.116	.036	.131
SN				−.065	−.983	−.098	.033
Appearance reasons to tan				.330	5.240***	.086	.190
Perceived susceptibility to:
Damaging appearance				−.023	−.385	.078	.052
Health consequence				.013	.215	.042	.053
Tanning knowledge				.007	.110	.052	.058
Behaviour
(1)	.702	.695	115.117***
Intention				.834	20.560***	.815	.988
PBC				−.048	−.529	−.119	.069
(2)	.710	.698	58.891***
Intention				.830	18.654***	.776	.959
PBC				−.031	−.682	−.130	.063
Attitude				.029	.630	−.049	.094
SN				.021	.452	−.041	.066
Appearance reasons to tan				.098	2.229*	.006	.106
Perceived susceptibility to:
Damaging appearance				.030	.705	−.036	.076
Health consequence				−.015	−.360	−.048	.033
Tanning knowledge				−.037	.874	−.066	.025

𝑃≤0.05 *, 𝑃<0.01**, 𝑃<0.001***.