Table 2. Baseline sociodemographic characteristics of sample according to presence/absence of aMCI (n=352).
| Characteristics | aMCI+ (n=63*) | aMCI- (n=289*) | p-value | |
|---|---|---|---|---|
| Age (years)* | 75.21±7.20 | 69.99±6.70 | <0.001a | |
| Age group | 60-64 | 2 (2.9) | 67 (97.1) | <0.001b |
| 65-69 | 14 (14.3) | 84 (85.7) | ||
| 70-74 | 11 (14.3) | 66 (85.7) | ||
| 75-79 | 19 (29.2) | 46 (70.8) | ||
| ≥80 | 16 (38.1) | 26 (61.9) | ||
| Sex | Female | 52 (82.5) | 240 (83.0) | 0.923c |
| Male | 11 (17.5) | 49 (17.0) | ||
| Marital status | Single | 11 (21.6) | 40 (78.4) | 0.339b |
| Married | 28 (15.6) | 152 (84.4) | ||
| Widowed | 21 (22.6) | 72 (77.4) | ||
| Divorced | 3 (11.1) | 24 (88.9) | ||
| Years of education | 11 (6-11) | 13 (11-16) | <0.001d | |
| Educational level | 6-10 | 31 (49.2) | 60 (20.8) | |
| 11-15 | 23 (36.5) | 129 (44.6) | <0.001c | |
| >16 | 9 (14.3) | 100 (34.6) | ||
| History of arterial hypertension | Yes | 28 (44.4) | 88 (30.4) | 0.037c |
| No | 35 (55.6) | 198 (68.5) | ||
| Body mass index | <25 | 34 (53.9) | 180 (62.3) | 0.187c |
| ≥25 | 27 (42.9) | 98 (33.9) | ||
| District of origin | Jesús María | 14 (16.5) | 71 (83.5) | 0.002c |
| La Molina | 9 (8.1) | 104 (92.0) | ||
| Carabayllo | 21 (25.3) | 62 (74.7) | ||
| Cercado de Lima | 19 (26.8) | 52 (73.2) |
Participants with missing values for some characteristics were not included in analysis.
a
t-test;
b
Fisher;
c
Chi-squared;
d
Mann-Whitney tests were used for bivariate analysis because the variable did not have a normal distribution.