TABLE 1.
Details of the Irish National Nutrition Phenotype Database1
| National adult nutrition survey | Metabolically challenged cohort | Targeted elderly sample | |
| Study type | Cross-sectional | Acute intervention (OGTT, OLTT) | Longitudinal |
| Sample size, n | 1500 (free-living) | 214 (free-living) | 5200 (from outpatient/general practice clinics) |
| Age range, y | 18–90 | 18–60 | 60–102 |
| Dietary data | 4-d semi-weighed food diary | FFQ | Targeted questionnaire |
| Physical activity data | Accelerometry and questionnaire | Questionnaire | Questionnaire |
| Anthropometric data | Standard | Standard | Standard |
| Body composition data | Bioelectrical impedance | DXA, plethysmography | DXA |
| Physical function data | No | Resting metabolic rate, aerobic fitness, muscle function | No |
| Targeted blood analysis | Extensive fasting profile | Extensive fasting and postprandial | Targeted |
| Gene sequence data | Yes | Yes | Yes |
| Gene expression data | No | Yes | No |
| Metabolomics data | Urine | Plasma and urine | No |
1
OGTT, oral-glucose-tolerance test; OLTT, oral-lipid-tolerance test.