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. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Mayo Clin Proc. 2016 Apr 8;91(5):612–622. doi: 10.1016/j.mayocp.2016.02.011

Table 2.

Association between demographic characteristics and HOUSES as both continuous scale and quartiles (Q1 – Q4)

HOUSES median (IQR) HOUSES (quartile)
Q1 (lowest), n (%) Q2, n (%) Q3, n (%) Q4 (highest), n (%)
Age, years [P <.001]a
18–45 −0.57 (−2.74, 1.65) 12,999 (28.6) 10,594 (23.3) 11,022 (24.3) 10,835 (23.8)
46–65 0.22 (−1.72, 2.57) 5,454 (18.8) 6,853 (23.6) 7,598 (26.2) 9,106 (31.4)
>65 −0.95 (−2.32, 0.75) 3,551 (26.2) 4,556 (33.6) 3,382 (25.0) 2,060 (15.2)

Gender [P <.001]a
Male −0.17 (−2.12, 2.02) 9,283 (23.3) 9,862 (24.7) 10,274 (25.7) 10,505 (26.3)
Female −0.54 (−2.40, 1.69) 12,721 (26.5) 12,141 (25.2) 11,728 (24.4) 11,496 (23.9)

Ethnicity [P <.001]a
Non-Hispanic
White −0.24 (−2.11, 1.96) 18,519 (22.9) 20,754 (25.7) 20,525 (25.4) 20,901 (25.9)
African
American −4.56 (−5.15, −0.44) 1,603 (60.5) 390 (14.7) 461 (17.4) 196 (7.5)
Asian −0.41 (−3.21, 1.74) 956 (31.2) 586 (19.1) 778 (25.4) 745 (24.3)
Hispanic −3.51 (−4.97, −0.43) 926 (58.0) 273 (17.1) 238 (14.9) 159 (10.0)
a

p-value from Chi-square test