Table 3

Linear regression analysis on the contributions of independent variables to PTSD and depression at the 36th month
PTSD (adjusted R2= 0.389) Depression (adjusted R2= 0.404)
Variablesa Beta Partial correlation P Beta Partial correlation P
PTSD 0.448 0.455 < 0.01
depression 0.462 0.455 < 0.001
Residence 0.033 0.041 0.40 0.062 0.077 0.11
Sex −0.076 −0.095 0.05 −0.031 −0.039 0.42
Ethnicity 0.006 0.007 0.88 0.053 0.069 0.18
Objective experiences 0.120 0.139 0.004 0.066 0.077 0.11
Subjective experiences 0.182 0.213 < 0.001 −0.033 −0.039 0.43
Earthquake-related loss 0.171 0.192 < 0.001 0.051 0.058 0.24
Perceived social support 0.062 0.070 0.15 −0.364 −0.417 < 0.001

Note. PTSD = posttraumatic stress disorder; Beta = standardized coefficient.

a Residence, sex, and ethnicity were dummy-coded as follows: Wenchuan = 0, Mao = 1; girls = 0, boys = 1; ethnic minorities = 0, Han = 1. Objective experiences (Eq1, Eq2, Eq3 and Eq4), subjective experiences (Eq9, Eq10 and Eq11), and earthquake-related loss (Eq5, Eq6, Eq7 and Eq8) were computed by summing positive responses in each category.

Jia et al.

Jia et al. BMC Public Health 2013 13:104   doi:10.1186/1471-2458-13-104

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