. 2015 Jan 6;5:1474. doi: 10.3389/fpsyg.2014.01474

Table 5.

Background variables (sociodemography and psychopathology) for the depressed and non-depressed group: means (standard deviations) or frequency.

Variable	Depressed	Non-depressed	Statistics
	(n = 14)	(n = 56)
Former groups (PTSD/non-PTSD/non-Trauma)	11/3/0	11/23/22
Age (in years)	73.07 (2.62)	73.16 (2.40)	t₍₆₈₎ < 1, p = 0.903
Sex (female/male)	14/0	38/18	χ²₍₁₎ = 6.06, p = 0.014
Verbal intelligence	114.71 (14.29)	117.86 (10.57)	t₍₆₈₎ < 1, p = 0.358
HDRS	16.14 (4.44)	3.89 (3.42)	t₍₆₈₎ = 11.29, p < 0.001
PDS	16.21 (5.47)	8.18 (5.93)	t₍₄₆₎ = 4.36, p < 0.001

HDRS, Hamilton Depression Rating Scale; PDS, Posttraumatic Diagnostic Scale.