Table 3.
Summary statistics of haematological parameters [Basophils, Eosinophils, Neutrophils, Lymphocytes, Monocytes, and white blood cell (WBC)] for black and nonblack populations by time of day.
| Parameter (x108/liter) |
Hour | Number of subjects, mean number of cells (Standard Deviation) | ||
|---|---|---|---|---|
| Black | Nonblack | All | ||
| Basophils | 8 | 30, 0.21(0.13) | 426, 0.30(0.18) | 456, 0.29(0.18) |
| 9 | 96, 0.22(0.12) | 879, 0.29(0.19) | 975, 0.29(0.18) | |
| 10 | 141, 0.23(0.16) | 1,113, 0.30(0.19) | 1,254, 0.30(0.19) | |
| 11 | 141, 0.27(0.22) | 1,006, 0.30(0.17) | 1,147, 0.29(0.18) | |
| 12 | 206, 0.23(0.19) | 1,442, 0.29(0.17) | 1,648, 0.29(0.18) | |
| 13 | 191, 0.25(0.15) | 1,394, 0.29(0.19) | 1,585, 0.28(0.19) | |
| 14 | 192, 0.25(0.15) | 1,165, 0.29(0.18) | 1,357, 0.28(0.17) | |
| 15 | 208, 0.23(0.15) | 1,297, 0.29(0.18) | 1,505, 0.28(0.17) | |
| 16 | 294, 0.24(0.14) | 1,334, 0.29(0.17) | 1,628, 0.28(0.17) | |
| 17 | 144, 0.24(0.14) | 660, 0.29(0.16) | 804, 0.28(0.16) | |
| 18 | 85, 0.26(0.19) | 270, 0.31(0.19) | 355, 0.30(0.19) | |
| Eosinophils | 8 | 30, 2.10(1.90) | 426, 2.08(1.97) | 456, 2.08(1.96) |
| 9 | 96, 2.21(2.66) | 879, 1.81(1.35) | 975, 1.85(1.53) | |
| 10 | 141, 1.71(2.03) | 1,114, 1.87(1.89) | 1255, 1.85(1.90) | |
| 11 | 141, 2.03(3.16) | 1,006, 1.57(1.87) | 1147, 1.62(2.08) | |
| 12 | 207, 1.58(2.06) | 1,443, 1.56(1.54) | 1650, 1.57(1.62) | |
| 13 | 191, 1.47(1.80) | 1,398, 1.49(1.48) | 1589, 1.49(1.52) | |
| 14 | 192, 1.49(1.77) | 1,165, 1.52(1.50) | 1357, 1.52(1.54) | |
| 15 | 208, 1.31(1.15) | 1,300, 1.55(1.55) | 1508, 1.51(1.51) | |
| 16 | 294, 1.33(1.29) | 1,337, 1.60(1.47) | 1631, 1.55(1.44) | |
| 17 | 145, 1.74(2.36) | 664, 1.65(1.61) | 809, 1.67(1.77) | |
| 18 | 85, 1.38(1.18) | 272, 1.67(1.44) | 357, 1.60(1.38) | |
| Lymphocytes | 8 | 31, 21.55(5.06) | 426, 19.78(5.83) | 457, 19.90(5.79) |
| 9 | 96, 19.88(5.06) | 880, 18.68(5.14) | 976, 18.80(5.14) | |
| 10 | 142, 18.86(5.26) | 1,114, 19.20(5.31) | 1256, 19.16(5.30) | |
| 11 | 141, 19.53(5.90) | 1,010, 18.53(5.04) | 1151, 18.65(5.16) | |
| 12 | 206, 19.31(5.74) | 1,444, 19.07(5.28) | 1650, 19.10(5.33) | |
| 13 | 191, 19.57(4.91) | 1,394, 19.41(5.26) | 1585, 19.43(5.22) | |
| 14 | 192, 20.24(5.08) | 1,166, 20.21(5.60) | 1358, 20.22(5.53) | |
| 15 | 209, 20.81(5.98) | 1,299, 21.00(6.01) | 1508, 20.97(6.01) | |
| 16 | 296, 21.57(6.29) | 1,338, 21.60(6.06) | 1634, 21.60(6.10) | |
| 17 | 145, 21.85(5.51) | 665, 21.76(6.01) | 810, 21.78(5.92) | |
| 18 | 86, 23.46(6.08) | 273, 22.96(6.82) | 359, 23.08(6.65) | |
| Monocytes | 8 | 30, 4.37(1.16) | 426, 5.13(1.74) | 456, 5.08(1.72) |
| 9 | 96, 4.62(1.85) | 879, 5.08(1.72) | 975, 5.04(1.74) | |
| 10 | 141, 4.23(1.51) | 1,113, 5.23(1.81) | 1,254, 5.12(1.81) | |
| 11 | 141, 4.35(1.67) | 1,006, 4.94(1.68) | 1,147, 4.87(1.69) | |
| 12 | 206, 4.21(1.61) | 1,443, 4.98(1.70) | 1,649, 4.89(1.71) | |
| 13 | 191, 4.33(1.37) | 1,394, 5.05(1.65) | 1,585, 4.96(1.64) | |
| 14 | 192, 4.17(1.35) | 1,165, 5.16(1.62) | 1,357, 5.02(1.62) | |
| 15 | 208, 4.29(1.39) | 1,297, 5.44(1.70) | 1,505, 5.28(1.71) | |
| 16 | 294, 4.45(1.44) | 1,335, 5.48(1.62) | 1,629, 5.30(1.64) | |
| 17 | 145, 4.73(1.61) | 660, 5.54(1.68) | 805, 5.40(1.69) | |
| 18 | 85, 4.79(1.57) | 271, 5.77(1.67) | 356, 5.54(1.70) | |
| Neutrophils (x109/liter) | 8 | 31, 2.36(0.96) | 427, 3.07(1.11) | 458, 3.02(1.11) |
| 9 | 97, 2.34(1.00) | 883, 3.30(1.20) | 980, 3.20(1.22) | |
| 10 | 143, 2.49(0.96) | 1,115, 3.55(1.30) | 1,258, 3.43(1.31) | |
| 11 | 143, 2.45(1.11) | 1,009, 3.56(1.26) | 1,152, 3.42(1.30) | |
| 12 | 206, 2.60(1.28) | 1,442, 3.73(1.38) | 1,648, 3.59(1.42) | |
| 13 | 193, 2.78(1.19) | 1,399, 3.87(1.46) | 1,592, 3.74(1.47) | |
| 14 | 198, 2.69(1.28) | 1,166, 4.09(1.50) | 1,364, 3.89(1.55) | |
| 15 | 209, 2.89(1.26) | 1,300, 4.34(1.48) | 1,509, 4.14(1.53) | |
| 16 | 298, 2.90(1.24) | 1,342, 4.49(1.49) | 1,640, 4.21(1.57) | |
| 17 | 154, 2.87(1.11) | 673, 4.40(1.52) | 827, 4.12(1.57) | |
| 18 | 97, 3.16(1.38) | 283, 4.42(1.64) | 380, 4.10(1.67) | |
| White Blood Cells (x109/liter) | 8 | 32, 5.17(1.18) | 427, 5.80(1.54) | 459, 5.76(1.52) |
| 9 | 98, 5.01(1.25) | 886, 5.88(1.48) | 984, 5.80(1.48) | |
| 10 | 144, 4.99(1.26) | 1,126, 6.21(1.62) | 1,270, 6.07(1.63) | |
| 11 | 147, 5.06(1.51) | 1,043, 6.08(1.59) | 1,190, 5.96(1.61) | |
| 12 | 211, 5.14(1.58) | 1,477, 6.31(1.68) | 1,688, 6.17(1.72) | |
| 13 | 196, 5.37(1.42) | 1,411, 6.49(1.76) | 1,607, 6.36(1.76) | |
| 14 | 198, 5.32(1.51) | 1,169, 6.81(1.79) | 1,367, 6.60(1.83) | |
| 15 | 209, 5.55(1.59) | 1,306, 7.17(1.80) | 1,515, 6.95(1.86) | |
| 16 | 300, 5.66(1.57) | 1,349, 7.40(1.79) | 1,649, 7.08(1.88) | |
| 17 | 155, 5.74(1.34) | 681, 7.33(1.81) | 836, 7.04(1.84) | |
| 18 | 97, 6.19(1.71) | 288, 7.49(1.92) | 385, 7.16(1.95) | |