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Table 1 Time-course of physical and hematological parameters

From: Determinants of the daily rhythm of blood fluidity

   7:30 10:00 13:30 16:30 19:30 21:30 P value
Body temperature (°C) 36.5 ± 0.1 36.7 ± 0.2 36.9 ± 0.2 36.7 ± 0.2 36.9 ± 0.2 36.9 ± 0.2 < 0.001
Heartbeat (beat/min) 61.0 ± 5.7 66.8 ± 8.0 66.3 ± 5.0 63.6 ± 6.1 68.0 ± 6.2 67.4 ± 7.5 < 0.01
Systolic blood pressure (hPa) 144.9 ± 12.8 147.9 ± 13.2 152.2 ± 14.6 145.4 ± 9.3 149.4 ± 11.6 153.5 ± 14.3 < 0.05
Diastolic blood pressure (hPa) 92.4 ± 8.6 84.4 ± 9.0 81.0 ± 7.0 89.2 ± 12.0 89.1 ± 9.8 89.4 ± 11.9 < 0.01
Blood passage time (second) 50.5 ± 3.5 46.8 ± 3.1 45.4 ± 2.5 48.5 ± 3.2 46.6 ± 2.6 46.5 ± 2.1 < 0.001
Hematocrit (%) 46.7 ± 2.2 46.5 ± 2.4 45.4 ± 1.7 46.9 ± 1.7 45.8 ± 1.6 45.6 ± 1.9 < 0.01
Red blood cell (× 104cells/μl) 487.4 ± 30.7 487.4 ± 31.4 474.4 ± 27.3 490.8 ± 25.1 478.6 ± 30.2 471.0 ± 29.1 < 0.05
Hemoglobin (mg/dl) 14.9 ± 0.7 14.8 ± 0.8 14.4 ± 0.6 14.9 ± 0.7 14.5 ± 0.6 14.2 ± 0.6 < 0.01
White blood cell (cells/μl) 5511.1 ± 1267.3 5200.0 ± 1136.9 5388.9 ± 869.5 5600.0 ± 933.5 5933.3 ± 919.2 6350.0 ± 750.3 0.06
Platelet (× 104cells/μl) 21.6 ± 4.4 22.0 ± 4.5 21.6 ± 3.9 22.3 ± 3.5 21.3 ± 3.4 21.9 ± 4.7 0.83
Albuminn (g/dl) 4.7 ± 0.2 4.6 ± 0.1 4.7 ± 0.2 4.7 ± 0.2 4.7 ± 0.2 4.7 ± 0.1 0.27
Fibrinogen (mg/dl) 201.9 ± 20.4 200.8 ± 24.5 193.3 ± 22.4 196.9 ± 22.8 192.4 ± 26.0 198.9 ± 30.7 0.09
Total cholesterol (mg/dl) 166.1 ± 16.9 165.2 ± 14.5 162.6 ± 12.4 164.2 ± 13.1 159.6 ± 12.9 160.6 ± 13.6 < 0.01
HDL-cholesterol (mg/dl) 58.2 ± 9.4 55.4 ± 8.9 54.9 ± 9.5 59.1 ± 8.6 57.8 ± 9.6 60.0 ± 9.1 < 0.001
Total protein (g/dl) 7.3 ± 0.3 7.3 ± 0.2 7.3 ± 0.3 7.4 ± 0.3 7.3 ± 0.3 7.2 ± 0.2 0.18
Beta-lipo protein (mg/dl) 259.7 ± 51.8 288.9 ± 59.3 281.0 ± 59.8 248.9 ± 47.4 255.4 ± 40.5 233.8 ± 37.3 < 0.001
Tri-glyceride (mg/dl) 69.2 ± 45.9 151.7 ± 88.2 131.0 ± 75.7 63.4 ± 31.1 111.6 ± 48.7 46.0 ± 16.7 < 0.001
Blood glucose (mg/dl) 82.6 ± 3.0 74.2 ± 10.4 85.8 ± 14.5 84.6 ± 7.7 96.9 ± 18.9 98.2 ± 16.4 < 0.001
  1. Values shown are means ± standard deviations for nine subjects.
  2. P value shows the result of ANOVA of one way repeated measures (Fisher's PLSD) and the value smaller than 0.05 shows significant change for the time course.