Distribution of PRSs and clinical risk factors in 289 controls without osteopenia or osteoporosis and 149 cases with osteoporosis. We divided study participants into cases and controls and into 5 quintiles according to their individual gSOS PRSs and clinical risk factors combined. Proportion and 95% CI of cases and controls are presented per quintile. A, Distribution of osteoporosis cases and controls according to quintiles of the gSOS PRS. There were 14 (16.1%) cases vs 73 (83.9%) controls in the first quintile (most favorable), 28 (31.8%) vs 60 (68.2%) in the second, 30 (34.5%) vs 57 (65.5%) in the third, 35 (39.8%) vs 53 (60.2%) in the fourth, 42 (47.7%) vs 46 (52.3%) in the fifth (least favorable). B, Distribution of osteoporosis cases and controls according to quintiles of clinical risk. There were 6 (6.1%) cases vs 92 (93.9%) controls in the first quintile (most favorable), 16 (17.8%) vs 74 (82.2%) in the second, 30 (34.5%) vs 57 (65.5%) in the third, 37 (46.8%) vs 42 (53.2%) in the fourth, 60 (71.4%) vs 24 (28.6%) in the fifth (least favorable). gSOS, genetically predicted heel quantitative ultrasound speed of sound; PRS, polygenic risk score.