(A) Percent of heritability explained by SNPs within 1kb around each PAS. Error bars represent +/- 1 standard deviation. We analyzed the following phenotypes: Baso – Basophil count, Baso_p – Basophil percentage of white cells, Baso_p_gran – Basophil percentage of granulocytes, Baso_neut_sum – sum basophil neutrophil count, Eo_baso_sum – sum eosinophil basophil count, Eo – eosinophil count, Eo_p – eosinophil percentage of white cells, Eo_p_gran - eosinophil percentage of granulocytes, Gran – granulocyte count, Gran_p_myeloid_wbc - granulocyte percentage of myeloid white cells, Hct - hermatocrit, Hgb - hemoglobin concentration, Hlr_p - high light scatter percentage of red cells, Hlr - high light scatter reticulocyte count, Irf - immature fraction of reticulocyte cells, Lymph - lymphocyte count, Lymph_p – lymphocyte percentage of white cells, Mchc - mean corpuscular hemoglobin concentration, Mch - mean corpuscular hemoglobin, Mcv - mean corpuscular volume, Mono – monocyte count, Mono_p – monocyte percentage of white cells, Mpv – mean platelet volume, Myeloid_wbc – myeloid cell count, Neut_eo_sum – neutrophil percentage of granulocytes, Neut - neutrophil count, Neut_p -neutrophil percentage of white cells, Pct - plateletcrit, Pdw - platelet distribution width, Plt - platelet count, Rbc - red blood cell count, Rdw - red cell distribution width, Ret - reticulocyte count, Ret_p – reticulocyte fraction of red cells, Wbs - white blood cell count, RA – rheumatoid arthritis. Blood phenotype statistics published in Astle et al., 2016. Rheumatoid arthritis statistics were obtained from Okada et al., 2014. (B) Enrichment of heritability explained by SNPs within 1kb around PAS for the phenotypes analyzed.