Non-participation in chlamydia screening in the Netherlands: determinants associated with young people’s intention to participate in chlamydia screening

Table 4 Means, correlation coefficients with intention to screen and R-squares for the explicit and implicit measures

	No letter		Letter (PHS + New)		No letter vs. letter
	(N = 713)		(N = 735)		No letter vs. letter
	M (SD)	r	M (SD)	r	p
*Implicit*
D-600 reassured	0.25 (.32)	.05	0.29 (.32)	-.04	.05
D-600 threatening	0.16 (.35)	.01	0.13 (.32)	-.05	.05
D-600 annoying	0.25 (.32)	-.03	0.17 (.33)	-.00	<.001
*Explicit*
Intention to screen	1.42 (.76)	1.00*	1.74 (.94)	1.00*	<.001
Attitude**	2.65 (.65)	.35*	2.99 (.64)	.40*	<.001
Susceptibility**	1.58 (.69)	.53*	1.75 (.77)	.46*	<.001
Severity of chlamydia (1–8)	5.08 (1.39)	-.07	5.26 (1.38)	-.07	.01
Unrealistic optimism	3.15 (.81)	-.42*	3.08 (.82)	-.36*	.08
Subjective norm**	1.18 (.53)	.65*	1.30 (.66)	.50*	<.001
Descriptive norm	1.95 (1.09)	.44*	2.05 (1.08)	.36*	.09
Moral norm**	2.07 (1.08)	.53*	2.36 (1.11)	.59*	<.001
Perceived behavioral control	4.22 (.93)	.01	4.25 (.86)	.00	.66
Outcome expectations	3.22 (1.21)	.26*	3.44 (.1.14)	.35*	<.001
Barrier – don’t feel like taking it	3.28 (1.39)	-.03	3.19 (.1.36)	-.00	.19
R ²		.56		.49

*correlation with intention: p < .001 (Bonferroni correction for multiple comparisons).
**significant predictors of intention in the multivariate linear model.
M = mean; (SD) = Standard Deviation. The D-600 scores are on a continuum, where a higher score indicates a more positive association with the variable. All explicit measures, except Severity, are from 1–5, where 5 indicates a higher score on the variable.

ISSN: 1471-2458