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. 2018 Apr 11;24:15. doi: 10.1186/s10020-018-0018-5

Table 1.

Characteristics of study participants

Variables Korcula Vis Split
N with PTH and GWAS data 863 834 960
N underwent parathyroid surgery 1 0 1
N with PTH level < 5 pg/ml 56 3 3
Sample size used in the analyses 806 831 959
Women, N (%) 524 (65%) 486 (58%) 586 (61%)
Median age, (qL,qU) 57 (47, 67) 57 (45,69) 52 (40, 61)
Median PTH, pg/ml (qL,qU) 19.9 (13.7, 29.1) 25.9 (18.4, 32.1) 21.6 (17.2, 26.5)

N: number of individuals; qL: lower quartile, qu: upper quartile