BMC Public Health

Table 10 Interaction effect analysis for the total MCS score (N = 2,080)

From: The association between exposure and psychological health in earthquake survivors from the Longmen Shan Fault area: the mediating effect of risk perception

Variables	MCS
Variables	B	SE	Beta	△R²	R²
Step 1				0.068**	0.068**
Gender	−0.806	0.163	−0.135**
Age	0.129	0.096	0.039
Ethnic group	−0.075	0.121	−0.017
Education	0.468	0.151	0.088
Income	0.951	0.150	0.220**
Housing	−0.151	0.067	−0.062*
Step 2				0.149**	0.218**
DRP	−0.106	0.010	−0.123**
IRP	−0.134	0.011	−0.137**
Step 3				0.038**	0.256**
SS	0.113	0.002	0.075**
OS	0.120	0.014	0.130**
SA	0.098	0.009	0.064**
Step 4				0.016**	0.273**
DRP × SS	0.053	0.004	0.052**
DRP × OS	0.024	0.002	0.013
DRP × SA	0.015	0.010	0.045
IRP × SS	0.010	0.009	0.026
IRP × OS	0.042	0.003	0.046**
IRP × SA	0.063	0.012	0.054**

* < 0.05; ** < 0.01
B unstandardized, beta standardized coefficients, R² explanation rate, △R² change in explanation rate in each step

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ISSN: 1471-2458

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