TABLE 1.
Baseline characteristics by quintiles of total fat intake as percentages of energy among participants in NIH-AARP Diet and Health Study.
| Characteristics | Q1 | Q2 | Q3 | Q4 | Q5 | |
|---|---|---|---|---|---|---|
| N participants | 60,141 | 60,141 | 60,141 | 60,141 | 60,140 | |
| Total fat intake (Median), % of total energy | 20.1 | 26.0 | 30.0 | 34.0 | 39.5 | |
| Age, years (Mean ± SD) | 61.6 ± 5.3 | 61.5 ± 5.3 | 61.5 ± 5.3 | 61.4 ± 5.3 | 61.2 ± 5.4 | |
| Men, N (%) | 33,481 (55.7) | 33,485 (55.7) | 35,140 (58.4) | 36,420 (60.6) | 35,765 (59.5) | |
| Race, N (%) | ||||||
| Non-Hispanic White | 55,001 (91.5) | 55,677 (92.6) | 55,741 (92.7) | 55,890 (92.9) | 56,098 (93.3) | |
| Other | 4,481 (7.5) | 3,898 (6.5) | 3,805 (6.3) | 3,640 (6.1) | 3,377 (5.6) | |
| Caffeine intake, mg/day (Mean ± SD) | 297.7 ± 339.6 | 331.1 ± 350.9 | 355.2 ± 356.7 | 386.1 ± 373.3 | 429.7 ± 398.7 | |
| Smoking status | ||||||
| never | 23,584 (41.1) | 23,863 (41.5) | 23,628 (41.1) | 22,975 (39.9) | 21,237 (36.9) | |
| past | 29,845 (52.0) | 29,344 (51.0) | 28,729 (50.0) | 28,254 (49.0) | 27,282 (47.4) | |
| current | 3,922 (6.8) | 4,327 (7.5) | 5,156 (9.0) | 6,379 (11.1) | 9,064 (15.7) | |
| Total energy intake, Kcal/day (Mean ± SD) | 1,737.6 ± 839.7 | 1,710.4 ± 703.7 | 1,792.7 ± 725.7 | 1,892.5 ± 780.1 | 2,005.5 ± 870.5 | |
| Carbohydrate intake, % of energy, (Mean ± SD) | 61.4 ± 11.4 | 56.4 ± 7.5 | 52.8 ± 6.3 | 49.4 ± 5.39 | 43.7 ± 5.6 | |
| Protein intake, % of energy (Mean ± SD) | 14.7 ± 3.6 | 15.6 ± 3.1 | 15.6 ± 3.0 | 15.6 ± 2.9 | 15.6 ± 2.9 | |
| Cholesterol intake, mg/day (Mean ± SD) | 121.5 ± 71.2 | 162.0 ± 83.0 | 194.0 ± 97.1 | 228.6 ± 115.3 | 280.2 ± 150.7 | |
| Body mass index, kg/m2 (Mean ± SD) | 25.8 ± 4.4 | 26.6 ± 4.7 | 27.0 ± 4.8 | 27.4 ± 5.0 | 27.9 ± 5.5 | |
| Self-reported diabetes, N (%) | ||||||
| No | 57,428 (95.5) | 56,612 (94.1) | 55,950 (93.0) | 55,389 (92.1) | 53,768 (89.4) | |
| Yes | 2,713 (4.5) | 3,529 (5.9) | 4,191 (7.0) | 4,752 (7.9) | 6,372 (10.6) | |
| Self-reported health status, N (%) | ||||||
| Excellent | 14,026 (23.3) | 12,079 (20.1) | 10,904 (18.1) | 10,046 (16.7) | 9,482 (15.8) | |
| Very good | 22,712 (37.8) | 23,246 (38.7) | 22,866 (38.0) | 22,401 (37.2) | 20,983 (34.9) | |
| Good | 17,946 (29.8) | 19,119 (31.8) | 20,360 (33.9) | 21,092 (35.1) | 21,900 (36.4) | |
| Fair | 4,195 (7.0) | 4,468 (7.4) | 4,721 (7.9) | 5,354 (8.9) | 6,295 (10.5) | |
| Poor | 444 (0.7) | 436 (0.7) | 494 (0.8) | 537 (0.9) | 737 (1.2) | |
Numbers may not add up to the total due to missing.