Table 3. Sociodemographic characteristics of the 15,101 participants in the ELSA study (Estudo Longitudinal de Saúde do Adulto) who attended cognitive tests in baseline exami.
| Variables | Investigation centers | ||||||
|---|---|---|---|---|---|---|---|
| Bahia n (%) | Espírito Santo n (%) | Minas Gerais n (%) | Rio de Janeiro n (%) | Rio Grande do Sul n (%) | São Paulo n (%) | Total n (%) | |
| Sex | |||||||
| Male | 842 (41.50) | 497 (47.20) | 1474 (47.32) | 853 (47.81) | 887 (43.08) | 2336 (46.16) | 6,892 (45.64) |
| Female | 1187 (49.50) | 556 (52.80) | 1641 (52.68) | 931 (52.19) | 1172 (56.92) | 2725 (53.84) | 8,213 (54.36) |
| χ2 = 27.99; P < 0.0001 | |||||||
| Age | |||||||
| Mean | 53.62 | 52.79 | 52.42 | 49.52 | 53.12 | 51.61 | 52.09 |
| Standard deviation | 9.17 | 8.86 | 8.97 | 8.12 | 9.58 | 9.05 | 9.08 |
| F = 51.08; P < 0.0001 | |||||||
| Schooling | |||||||
| 1-4 years | 298 (14.69) | 159 (15.10) | 296 (9.50) | 47 (2.63) | 39 (1.89) | 801 (15.82) | 1640 (10.86) |
| ≥ 5 years | 1731 (85.31) | 894 (84.90) | 2819 (80.50) | 1737 (97.37) | 1740 (98.11) | 4260 (84.18) | 13465 (89.14) |
| χ2 = 26.33; P < 0.0001 | |||||||
| Working status | |||||||
| Employee | 1560 (76.89) | 828 (78.63) | 2466 (79.16) | 1626 (91.14) | 1487 (72.22) | 4129 (81.58) | 12,097 (80.10) |
| Retired | 469 (23.11) | 225 (21.17) | 649 (20.84) | 158 (9.86) | 572 (27.78) | 932 (18.42) | 3,008 (19.90) |
| χ2 = 240.00; P < 0.0001 | |||||||