Table 4. Sample 3 Current Psychiatric Comorbidity Prevalence (%) for Cases Meeting Criteria for the DSM-IV versus ICD-11 PTSD Diagnosis.

Diagnosis	All DSM-IV	All ICD-11	DSM-IV only	ICD-11 only	DSM-IV and ICD-11
	n = 264	n = 189	n = 96	n = 21	n = 168
Alcohol Abuse/Dependence	25/253 (9.9%)	22/181 (12.2%)	4/92 (4.3%)	1/20 (5.0%)	21/161 (13.0%)
Generalized Anxiety Disorder	34/253 (13.4%)	24/181 (13.3%)	12/92 (13.0%)	2/20 (10.0%)	22/161 (13.7%)
Major Depressive Episode	93/254 (36.6%)	65/183 (35.5%)	29/92 (31.5%)	1/21 (4.8%)	64/162 (39.5%)
Panic Disorder	9/252 (3.6%)	6/180 (3.3%)	4/92 (4.3%)	1/20 (5.0%)	5/160 (3.1%)

Note. “All DSM-IV” and “All ICD-11” refer to all individuals with PTSD according to the respective diagnostic system. “DSM-IV only” and “ICD-11 only” refers to individuals with discordant diagnoses (PTSD according to one diagnostic system but not the other). “DSM-IV and ICD-11” refers to the group of individuals with PTSD according to both systems. Numerator values represent the number of participants diagnosed with the given comorbidity, whereas denominators represent the number of participants diagnosed with PTSD according to the respective diagnostic system. Denominators differ by cell because comorbidity data were missing for some participants; missing data represented < 5% of the data collected in any given cell.