Theoretically designed interventions for colorectal cancer prevention: a case of the health belief model

BMC Medical Education

Table 3 Comparison of intervention and control groups in terms of health belief model constructs before and after the intervention

Constructs	Groups	Before intervention	After intervention	Mean Difference	P value^*
Constructs	Groups	Mean ± SD	Mean ± SD	Mean Difference	P value^*
Knowledge	Intervention	20.86 ± 4.49	26.23 ± 2.28	5.37 ± 2.21	< 0.001
Knowledge	Control	19.57 ± 4.56	18.64 ± 4.70	−0.93 ± 0.14	< 0.001
Perceived Susceptibility	Intervention	13.60 ± 3.70	15.58 ± 2.07	1.98 ± 1.63	< 0.001
Perceived Susceptibility	Control	11.35 ± 3.95	11.62 ± 3.41	0.27 ± 0.54	< 0.001
Perceived Severity	Intervention	22.24 ± 4.72	24.18 ± 2.98	1.94 ± 1.29	< 0.001
Perceived Severity	Control	20.93 ± 3.76	20.55 ± 3.08	−0.38 ± 0.68	< 0.001
Perceived Benefits	Intervention	28.56 ± 3.75	30.35 ± 3.57	1.99 ± 0.18	< 0.001
Perceived Benefits	Control	27.77 ± 3.88	25.50 ± 4.23	−2.27 ± 0.35	< 0.001
Perceived Barriers	Intervention	23.13 ± 5.57	22.11 ± 4.85	−1.02 ± 0.72	< 0.001
Perceived Barriers	Control	22.51 ± 4.10	24.00 ± 4.17	1.49 ± 0.07	< 0.001
Perceived Self- Efficacy	Intervention	17.82 ± 3.39	20.03 ± 2.70	2.21 ± 0.69	< 0.001
Perceived Self- Efficacy	Control	16.50 ± 2.86	16.18 ± 3.05	−0.32 ± 0.19	< 0.001
Behavioral Intention	Intervention	19.20 ± 3.06	20.26 ± 2.76	1.06 ± 0.3	< 0.001
Behavioral Intention	Control	18.93 ± 2.63	17.91 ± 2.99	−1.93 ± 0.36	< 0.001
Behavior	Intervention	15.60 ± 1.68	16.64 ± 2.02	1.04 ± 0.34	< 0.001
Behavior	Control	15.66 ± 1.89	15.50 ± 1.73	−0.16 ± 0.16	< 0.001

ISSN: 1472-6920