Reference value and annual trend of white blood cell counts among adult Japanese population
"WBC count of 3 × 103 cells/mm3 is recommended as the 95 % lower limit of the reference value for screening cases with reduced WBC counts."
另外加一篇: 白細胞(單核細胞)水平與老年人死亡率的相關性
Differential white blood cell count and all-cause mortality in the Korean elderly
.........monocyte count (HR: 5.18, 95% CI: 2.44–11.02) was a strongest predictor of all-cause mortality......