Table 1.
Basic descriptive statistics of the Chingford Study sample
| Visit number | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 15 | |
| Sample size | 1,003 | 813 | 663 | 854 | 821 | 834 | 841 | 808 | 810 | 638 |
| Age mean | 54.7 | 56.2 | 57.5 | 57.4 | 58.4 | 59.2 | 61.2 | 62.1 | 64.1 | 69.1 |
| Age median | 54.2 | 55.9 | 57.6 | 57.0 | 58.0 | 58.8 | 60.8 | 61.7 | 63.8 | 68.5 |
| Age IRQ | 10.9 | 10.3 | 10.4 | 10.8 | 10.9 | 10.7 | 10.6 | 10.5 | 10.7 | 10.0 |
| Age minimum | 44.6 | 45.6 | 46.4 | 47.4 | 48.4 | 49.4 | 51.4 | 52.3 | 53.5 | 59.8 |
| Age maximum | 67.9 | 69.1 | 70.0 | 70.7 | 70.9 | 71.7 | 73.6 | 74.9 | 77.6 | 81.9 |
| BMI mean | 25.61 | 25.75 | 25.96 | 26.12 | 26.32 | 26.65 | 26.73 | 27.05 | 26.78 | 27.22 |
| BMI median | 24.86 | 25.00 | 25.15 | 25.46 | 25.71 | 25.97 | 26.11 | 26.40 | 26.26 | 26.59 |
| BMI IRQ | 4.97 | 5.12 | 5.29 | 5.28 | 5.56 | 5.54 | 5.60 | 5.80 | 5.86 | 6.30 |
| Number of visits attended by participant | ||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| Count of individuals | 42 | 27 | 29 | 29 | 19 | 38 | 68 | 119 | 305 | 328 |