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

Table 1

Characteristics of tanners (T; 𝑛=210) versus nontanners (NT; 𝑛=71).

Characteristics	T	NT	Difference
Age mean (SD)	21.4/3.3	22.1/4.1	𝑡(279) = 1.571,
			eta squared =  .01
Sex 𝑛 (%)			𝜒^2(1) =  3.826*, phi =  −.117
Male	44/21.0	23/32.4
Female	166/79.0	48/67.6
Ethnicity  𝑛 (%)
White	204/97.1	34/47.9
Other	6/2.9	37/52.1
Skin type  𝑛 (%)
I	12/5.7	4/5.6
II	45/21.4	9/12.7
III	90/42.9	17/23.9
IV	52/24.8	19/26.8
V	8/3.8	19/26.8
VI	3/1.4	3/4.2
Average IT use past yr. mean (SD)	5.35/9.96	.00/.00	𝑡(209.000) = 4.518***,
			Eta Squared =  .09
Age first used ITB mean (SD)	17.75/208	18.00/1.79	𝑡(213) =  −.290,
			Eta Squared =  .00
TPB and additional constructs mean (SD)
Attitude	3.4/1.2	2.3/1.2	𝑡(279) = 6.573***,
			Eta Squared =  .13
SN	3.3/1.6	2.1/ 1.4	𝑡(279) = 5.999***,
			Eta Squared =  .11
PBC	5.2/.80	4.7/1.1	𝑡(94.480) = 3.816***,
			Eta Squared =  .13
Intention	.5/.9	0	𝑡(209.000) = 8.771***,
			Eta Squared =  .27
Appearance reasons to tan	5.3/2.0	2.8/1.8	𝑡(279) = 11.713***,
			Eta Squared =  .33
Damaging appearance	5.0/1.4	4.8/1.8	𝑡(279) = 1.007,
			Eta Squared =  .00
Health consequences	4.2/2.0	5.1/2.2	𝑡(279) = 3.341**,
			Eta Squared =  .04
Tanning knowledge	8.4/1.8	7.7/2.1	𝑡(279) = 3.005**,
			Eta Squared =  .03

𝑃≤0.05 *, 𝑃<0.01**, 𝑃<0.001***.