Research Article
Associations between Specific Redox Biomarkers and Age in a Large European Cohort: The MARK-AGE Project
Table 1
Characteristics of the three study groups.
| | All () | RASIG () | GO () | SGO () | |
| | Age (years) | 64.3 ± 5.4 | 64.5 ± 5.8 | 64.3 ± 4.9 | 63.9 ± 4.7 | 0.230 | | 55–59 years (n, (%)) | 345 (22.1) | 193 (24.3) | 94 (19.1) | 58 (21.3) | <0.001 | | 60–64 years (n, (%)) | 448 (28.7) | 210 (26.4) | 149 (30.2) | 89 (32.7) | | 65–69 years (n, (%)) | 465 (29.8) | 204 (25.7) | 166 (33.7) | 95 (34.9) | | 70–75 years (n, (%)) | 301 (19.3) | 187 (23.6) | 84 (17.0) | 30 (11.0) | | Gender, male (n, (%)) | 743 (47.7) | 386 (48.6) | 213 (43.2) | 144 (52.9) | 0.027 | | Smoker, current (n, (%)) | 231 (14.8) | 142 (17.9) | 63 (12.6) | 27 (9.9) | 0.001 | | BMI (kg/m2) | 27.3 ± 4.5 | 27.6 ± 4.7 | 26.6 ± 4.4 | 27.3 ± 4.2 | 0.692 | | <25 (n, (%)) | 516 (33.1) | 249 (31.4) | 188 (38.1) | 79 (29.0) | 0.036 | | 25 to <30 (n, (%)) | 673 (43.2) | 343 (43.3) | 199 (40.4) | 131 (48.2) | | ≥30 (n, (%)) | 369 (23.7) | 201 (25.3) | 106 (21.5) | 62 (22.8) | | Country | | | | | | | Belgium (n, (%)) | 472 (30.3) | 155 (19.5) | 190 (38.5) | 127 (46.7) | <0.001 | | Finland (n, (%)) | 253 (16.2) | 69 (8.7) | 132 (26.8) | 52 (19.1) | | Greece (n, (%)) | 209 (13.4) | 187 (23.6) | 18 (3.7) | 4 (1.5) | | Italy (n, (%)) | 323 (20.7) | 187 (23.6) | 87 (17.6) | 49 (18.0) | | Poland (n, (%)) | 302 (19.4) | 196 (24.7) | 66 (13.4) | 40 (14.7) |
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Values are means ± SD; value: one-way ANOVA (continuous variables) and Pearson’s chi-squared test (prevalence).
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