Variables | Daily eating frequency | P-value | ||||
---|---|---|---|---|---|---|
Quintile 1 (< 3 times, N = 8410) | Quintile 2 (3 to 3.5 times, N = 8380) | Quintile 3 (3.5 to 4 times, N = 3337) | Quintile 4 (4 to 4.5 times, N = 5485) | Quintile 5 (4.5 to 6 times, N = 4852) | ||
Age (years) | 44.2 (0.36) | 45.8 (0.35) | 47.1 (0.41) | 47.9 (0.34) | 47.4 (0.37) |  < 0.001 |
Men, % | 51.8 (0.6) | 50.2 (0.6) | 48.5 (1.1) | 45.9 (0.7) | 45.8 (0.9) |  < 0.001 |
Non-Hispanic white, % | 59.8 (2.0) | 68.0 (1.6) | 72.2 (1.5) | 74.5 (1.2) | 77.9 (1.2) |  < 0.001 |
Smoking, % | 27.8 (0.8) | 26.1 (0.8) | 23.8 (1.0) | 22.8 (0.7) | 21.0 (0.8) |  < 0.001 |
Drinking, % | 63.5 (0.9) | 69.4 (0.7) | 71.1 (1.2) | 73.3 (1.0) | 75.9 (1.0) |  < 0.001 |
College graduate or above, % | 46.9 (1.0) | 54.1 (1.0) | 63.1 (1.3) | 63.1 (1.3) | 69.7 (1.2) |  < 0.001 |
Household income over $75,000, % | 8.7 (0.6) | 12.5 (0.9) | 16.2 (1.1) | 18.7 (1.0) | 22.9 (1.4) |  < 0.001 |
Exercised regularly, % | 49.9 (0.7) | 44.4 (0.8) | 40.2 (1.1) | 37.8 (1.2) | 34.2 (1.2) |  < 0.001 |
Sleep duration (hours) | 6.9 (0.02) | 6.9 (0.02) | 7.0 (0.02) | 6.9 (0.02) | 6.9 (0.02) | 0.440 |
Night shift work,% | 0.6 (0.1) | 0.6 (0.1) | 0.2 (0.1) | 0.3 (0.1) | 0.4 (0.1) |  < 0.001 |
Daily energy intake (kcal/d) | 1885.4(12.6) | 2090.9(14.3) | 2160.0 (20.0) | 2230.3 (12.9) | 2413.5 (16.9) |  < 0.001 |
AHEI | 47.5 (0.18) | 49.0 (0.19) | 50.3 (0.26) | 50.9 (0.19) | 52.1 (0.21) |  < 0.001 |
Meal skipping, % | ||||||
 Breakfast skipping | 11.4 (0.6) | 5.4 (0.3) | 2.3 (0.4) | 2.5 (0.3) | 2.2 (0.2) |  < 0.001 |
 Lunch skipping | 14.3 (0.6) | 8.2 (0.4) | 6.6 (0.6) | 6.7 (0.4) | 6.1 (0.5) |  < 0.001 |
 Dinner skipping | 2.8 (0.2) | 1.9 (0.2) | 1.0 (0.2) | 1.2 (0.2) | 1.4 (0.2) |  < 0.001 |
 Nighttime fasting duration (hours) | 12.5 (0.04) | 11.7 (0.04) | 11.2 (0.04) | 10.8 (0.04) | 10.2 (0.04) |  < 0.001 |
 First eaten time | 8:09 (1.8) | 7:57 (2.4) | 7:46 (2.4) | 7:33 (1.8) | 7:42 (1.8) |  < 0.001 |
 Last eaten time | 20:09 (1.2) | 20:21 (1.8) | 20:31 (1.2) | 20:36 (1.8) | 20:46 (1.2) |  < 0.001 |
 BMI, kg/m2 | 29.0(0.10) | 28.8 (0.09) | 28.8 (0.18) | 28.4 (0.15) | 28.0 (0.13) |  < 0.001 |
 Hypertension, % | 36.0 (0.8) | 37.0 (0.8) | 37.0 (1.1) | 37.6 (0.9) | 34.7 (0.9) |  < 0.001 |
 SBP, mm Hg | 122.4 (0.3) | 122.1 (0.3) | 121.7 (0.4) | 121.3 (0.3) | 120.9 (0.3) |  < 0.001 |
 DBP, mm Hg | 70.0 (0.2) | 70.1 (0.2) | 70.4 (0.3) | 70.2 (0.3) | 70.9 (0.3) | 0.005 |
 Diabetes, % | 12.2 (0.4) | 11.5 (0.4) | 12.4 (0.9) | 10.8 (0.5) | 9.9 (0.7) |  < 0.001 |
 Fasting Glucose, mmol/l | 5.86 (0.04) | 5.85 (0.04) | 5.76 (0.05) | 5.77 (0.04) | 5.68 (0.04) |  < 0.001 |
 Dyslipidemia, % | 22.5 (0.7) | 27.0 (0.5) | 11.6 (0.4) | 20.4 (0.5) | 18.5 (0.5) |  < 0.001 |
 TC, mmol/l | 5.00 (0.01) | 5.05(0.02) | 5.04 (0.03) | 5.10 (0.02) | 5.09 (0.02) | 0.212 |
 LDL-C, mmol/l | 2.94 (0.02) | 2.97 (0.02) | 2.93 (0.03) | 3.02 (0.02) | 2.95 (0.03) | 0.262 |
 HDL-C, mmol/l | 1.33 (0.01) | 1.35 (0.01) | 1.37 (0.01) | 1.40 (0.01) | 1.43 (0.01) | 0.013 |
 TG, mmol/l | 1.49 (0.02) | 1.54 (0.02) | 1.49 (0.04) | 1.52 (0.04) | 1.43 (0.03) | 0.262 |