Peritraumatic Behavior Questionnaire - Observer Rated: Validation of the objective version of a measure for combat-related peritraumatic stress

Table 1 The Peritraumatic Behavior Questionnaire - Observer Rated

PBQ-OR questions
For a period of time, the individual did not act like their normal self
For a period of time, the individual seemed to feel fearless and invulnerable, as if nothing could harm them
For a period of time, the individual seemed not to care about their own or others' welfare or safety
For a period of time, the individual seemed to feel no remorse for doing things that would have bothered them in the past
1For a period of time, the individual seemed to be determined to get revenge
For a period of time, the individual seemed unable to stop laughing, crying, or screaming
For a period of time, the individual seemed helpless and unable to look out for their own welfare
For a period of time, the individual appeared to be confused, as if having difficulty making sense of what was happening
For a period of time, the individual appeared to be disoriented, as if uncertain about where they were or what day or what time it was
2For a period of time, the individual appeared not to be able to move parts of their body
2For a period of time, the individual froze or seemed to be moving very slowly, such that they could not do everything they wanted to do
For a period of time, the individual’s speech changed (such as stuttering, repeating words or phrases, or having a shaky or squeaky voice)
2For a period of time, the individual was not able to fully carry out their duties (during or immediately after the event)
1For a period of time, the individual expressed the belief that they were going to die
1For a period of time, the individual had an intense physical reaction such as sweating, shaking, or heart pounding

Text from PBQ-SR.

¹Questions 5, 14 and 15 have higher overall item-to-item significance of correlation to PBQ-SR;

²Questions 10, 11 and 13 (report order 3) received no non-zero responses. PBQ-OR: Peritraumatic Behavior Questionnaire - Observer Rated; PBQ-SR: Peritraumatic Behavior Questionnaire - Self Rated.

Table 2 Demographic information of the included study sample

	%
Education
Some high school	1.3
General education diploma	2.4
High school diploma	63.4
Some college	30.9
4-yr college degree	1.3
Ethnicity
Not Hipsanic or Latino	74.0
Mexican	15.2
South/Central American	5.5
Other Spanish culture or origin	4.6
Race
Black/African American	6.6
American Indian or Alaskan Native	9.1
Asian	2.6
Native Hawaiian or Pacific Islander	1.2
White	83.7
More than one	3.8

Demographics are given in percentage of the total available data (percentages under 1.0% are not reported).

Table 3 Total scores of psychometric assessments by different instruments

Report order	n	PBQ				CAPS		PCL
		PBQ-OR (Corpsman)		PBQ-SR (Marine)
		Mean	SD	Mean	SD	Mean	SD	Mean	SD
Overall	458	2.29	4.95	6.88	8.09	21.71	20.07	28.21	13.14
1	248	1.45	3.20	6.84	8.18	21.39	20.04	28.52	13.12
2	128	3.63	6.53	7.58	8.64	22.45	20.67	28.57	13.99
3	62	3.02	6.37	6.19	7.16	22.25	20.16	26.78	12.24

Means and SD of questionnaires administered post-deployment (PBQ-SR, CAPS, PCL) by report order include only Marine reports for those with returned PBQ-OR ratings. PBQ-OR: Peritraumatic Behavior Questionnaire - Observer Rated; PBQ-SR: Peritraumatic Behavior Questionnaire - Self Rated; PCL: Posttraumatic stress disorder Checklist; CAPS: Clinician Administered posttraumatic stress disorder Scale.

Table 4 Correlations between Peritraumatic Behavior Questionnaire - Observer Rated questionnaires and Marine Resiliency Study subject measures by report order

Report order	CAPS total score		PCL total score		PBQ-SR total score
	P	n	P	n	P	n
1	0.21b	235	0.25b	230	0.28b	249
2	0.28a	120	0.38b	113	0.41b	126
3	0.26a	63	0.46b	55	0.43b	63

Correlations plotted at mean days from report filing to PBQ-SR assessment.

^aP < 0.05,

^bP < 0.001. PCL: Posttraumatic stress disorder Checklist; CAPS: Clinician Administered Posttraumatic stress disorder scale; PBQ-SR: Peritraumatic Behavior Questionnaire - Self Rated.