Although several studies demonstrated that platelet count is higher in women, decreases with age, and is influenced by genetic background, most clinical laboratories still use the reference interval 150-400×10(9) platelets/L for all subjects. The present study was to identify age- and sex-specific reference intervals for platelet count.
Biino, G., Santimone, I., Minelli, C., Sorice, R., Frongia, B., Traglia, M., … Balduini, C. L. (2013). Age- And Sex-Related Variations in Platelet Count in Italy: A Proposal of Reference Ranges Based on 40987 Subjects’ Data. PLoS ONE, 8(1). https://doi.org/10.1371/journal.pone.0054289