Transdiagnostic considerations of mental health for the post-COVID era: Lessons from the first surge of the pandemic

Table 6 Italian sample

Combination	Count	Frequency	Percentage
None	0	3500	16.5%
PTSD-NA	1	6725	31.7%
Depression	1	147	0.7%
Perceived stress	1	59	0.3%
Anxiety	1	22	0.1%
Depression, PTSD-NA	2	771	3.6%
PTSS, PTSD-NA	2	2995	14.1%
Perceived stress, PTSD-NA	2	424	2.0%
Perceived stress, Depression	2	31	0.2%
Anxiety, PTSD-NA	2	202	1.0%
Anxiety, Depression	2	45	0.2%
Anxiety, Perceived stress	2	8	0.0%
PTSS, Depression, PTSD-NA	3	693	3.3%
Perceived stress, Depression, PTSD-NA	3	292	1.4%
Perceived stress, PTSS, PTSD-NA	3	586	2.8%
Anxiety, Depression, PTSD-NA	3	357	1.7%
Anxiety, PTSS, PTSD-NA	3	301	1.4%
Anxiety, Perceived stress, PTSD-NA	3	137	0.7%
Anxiety, Perceived stress, Depression	3	43	0.2%
Perceived stress, PTSS, Depression, PTSD-NA	4	480	2.3%
Anxiety, PTSS, Depression, PTSD-NA	4	657	3.2%
Anxiety, Perceived stress, Depression, PTSD-NA	4	537	2.5%
Anxiety, Perceived stress, PTSS, PTSD-NA	4	281	1.3%
Anxiety, Perceived stress, PTSS, Depression, PTSD-NA	5	1906	9.0%

PTSS: Post-traumatic stress symptoms; PTSD-NA: Post-traumatic stress disorder-negative affect.