Table 2. Participant Characteristics for 5 Phases of Whitehall II Study.
| Characteristic | Phase 3, 1991-1994 | Phase 5, 1997-1999 | Phase 7, 2002-2004 | Phase 9, 2007-2009 | Phase 11, 2011-2013 |
|---|---|---|---|---|---|
| Total participants | 116 | 106 | 109 | 108 | 116 |
| FRS %, median (IQR) [range]a | 6.92 (4.65-10.22) [0.88-24.68] | 8.99 (5.76-14.84) [1.17-32.33] | 12.80 (9.01-18.18) [1.43-41.91] | 15.55 (9.63-21.21) [3.06-58.00] | 16.39 (11.44-24.59) [2.85-55.08] |
| FRS, No. (%)b | |||||
| Low | 86 (74.1) | 58 (54.7) | 36 (33.3) | 30 (27.8) | 16 (13.8) |
| Moderate | 24 (20.7) | 39 (36.8) | 52 (47.7) | 48 (44.4) | 58 (50.0) |
| High | 6 (5.2) | 9 (8.5) | 21 (19.3) | 30 (27.8) | 42 (36.2) |
| Age, mean (SD) [range], y | 47.1 (5.0) [40.1-58.9] | 52.9 (4.9) [45.7-64.8] | 58.5 (5.0) [51.4-70.1] | 63.5 (5.0) [56.4-75.3] | 67.4 (4.9) [60.5-79.5] |
Abbreviations: FRS, Framingham Risk Score; IQR, interquartile range.
a
Framingham Risk Score is expressed as a percentage of 10-year risk of cardiovascular disease.
b
Low risk defined as FRS less than or equal to 10%; moderate risk, FRS between 10% and 20%; and high risk, FRS greater than or equal to 20%.