Comorbidity Patterns of Posttraumatic Stress Disorder and Depression Symptoms: Cross-Validation in Two Postearthquake Child and Adolescent Samples

Table 1

Demographic information and trauma exposure of samples.

Variables	Wenchuan		Ya’an
	Frequency	%	Frequency	%
Ethnic
Han	264	17.5	708	98.3
Tibetan	389	25.8	9	1.3
Qiang	805	53.5	—	—
Others	46	3.1	—	—
Grade (T1)
Primary 4	388	25.8	136	18.9
Primary 5	289	19.2	146	20.3
Primary 6	26	1.7	—	—
Grade 7	249	16.5	107	14.9
Grade 8	322	21.4	134	18.6
Grade 10	63	4.2	83	11.5
Grade 11	165	11.0	112	15.6
Trauma exposure
Trapped in the earthquake	293	19.5	58	8.1
Injured in the earthquake	92	6.1	99	13.8
Father/mother died in the earthquake	127	8.4	14	1.9
Teacher died in the earthquake	136	9.0	3	0.4
Classmate died in the earthquake	457	30.3	123	17.1
Relatives/friends died in the earthquake	546	36.3	91	12.6
Houses were severely or completely damaged in the earthquake	970	64.4	488	67.8
Fear of injury in the earthquake	948	62.9	452	62.8
Fear of death in the earthquake	889	59.0	442	61.4

Note. Some variables have missing values and therefore do not reach the total sample size.