. 2024 Feb 23;82(3):1–10. doi: 10.1055/s-0044-1779506

Table 2. Sociodemographic, psychosocial, and cognitive characterization of the total sample divided by age group (n = 419). FIBRA Study, 2016-2017.

Variables		Age group		p-value
Variables		72-79 n = 185 (44%)	80+ n = 234 (56%)	p-value
Education, n (%)	Illiterate	24 (13%)	30 (13%)	0.931 ⁺⁺
	Literate	156 (84%)	200 (85%)
	Missing	5 (3%)	4 (2%)
	MD (IQR)	4 (2-6)	4 (2-4)	0.159 ⁺
Family income, n (%)	MD (IQR)	2,346 (1,800-3,070)	2,490 (1,700-4,000)	0.628 ⁺
Family income, n (%)	Missing	17	30	0.628 ⁺
Live alone, n (%)	Yes	24 (13%)	53 (23%)	0.659 ⁺⁺
	No	81 (44%)	158 (67%)
	Missing	80 (43%)	23 (10%)
MMSE	MD (IQR)	25 (23-27)	25 (23-27)	0.772 ⁺
VF	MD (IQR)	12 (9-14)	11 (8-13)	0.053 ⁺
CDT	MD (IQR)	2 (1-5)	3 (1-4)	0.242 ⁺
CDT	Missing	0	1	0.242 ⁺
Episodic memory	MD (IQR)	2 (0-5)	3 (1-5)	0.817 ⁺
Episodic memory	Missing	0	2	0.817 ⁺
Neuroticism	MD (IQR)	27 (22-32)	25 (20-30)	0.050 ⁺
Neuroticism	Missing	7	13	0.050 ⁺
PiL	MD (IQR)	3.6 (3.1-4)	3.6 (3.1-4)	0.924 ⁺
PiL	Missing	8	9	0.924 ⁺
GDS, n (%)	≥6	34 (18%)	48 (21%)	0.789 ⁺⁺
	≤5	151 (82%)	186 (79%)	0.789 ⁺⁺
	MD (IQR)	3 (2-5)	3 (2-5)	0.369 ⁺

Abbreviations: CDT, Clock Drawing Test; GDS, Geriatric Depression Scale; IQR, interquartile range; MD, median; MMSE, Mini-Mental State Examination; n, sample size; PiL, Purpose in Life; VF, Verbal Fluence (animal category).

Notes: ⁺ Mann Whitney test; ⁺⁺ Qui-square test; p-value < 0.05 shows statistical significance.