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. 2016 Jan 14;16:13. doi: 10.1186/s12872-016-0190-x

Table 7.

12-month Pre-index demographic and clinical characteristics for hyperlipidemic patients with and without new CV events before matching

History of CV event cohort Modified CHD RE cohort Moderate risk cohort Low risk cohort
Without CV events With CV events Without CV events With CV events Without CV events With CV events Without CV events With CV events
(N = 10744) (N = 77163) (N = 145642) (N = 156793) (N = 11816 (N = 14544) (N = 16083) (N = 18665)
Mean [%]/(SD) Mean [%]/(SD) P-valuea STD Mean [%]/(SD) Mean [%]/(SD) P-valuea STD Mean [%]/(SD) Mean [%]/(SD) P-valuea STD Mean [%]/(SD) Mean [%]/(SD) P-valuea STD
Age 73.66 (13.15) 66.41 (13.65) <0.0001 65.28 (13.16) 65.17 (13.17) 0.0189 67.83 (12.63) 65.83 (12.83) <0.0001 57.73 (12.45) 54.56 (11.01) <0.0001
18-24 [0.0 %] [0.0 %] 0.04 2.8 [0.03 %] [0.05 %] 0.0018 1.1 [0.00 %] [0.00 %] N/A 0.0 [0.2 %] [0.2 %] 0.3062 1.1
25-34 [0.1 %] [0.4 %] <0.0001 6.6 [0.3 %] [0.4 %] 0.0002 1.4 [0.00 %] [0.00 %] N/A 0.0 [1.3 %] [1.8 %] 0.0016 3.4
35-54 [6.9 %] [18.4 %] <0.0001 34.8 [19.6 %] [19.6 %] 0.6784 0.2 [11.7 %] [16.7 %] <0.0001 14.3 [41.3 %] [51.1 %] <0.0001 19.8
55-64 [22.1 %] [32.1 %] <0.0001 22.7 [35.7 %] [35.3 %] 0.0122 0.9 [38.0 %] [41.2 %] <0.0001 6.6 [34.7 %] [33.6 %] 0.0327 2.3
≥65 [70.9 %] [49.2 %] <0.0001 45.6 [44.4 %] [44.7 %] 0.1341 0.5 [50.3 %] [42.1 %] <0.0001 16.5 [22.5 %] [13.3 %] <0.0001 24.1
Male [66.6 %] [63.0 %] <00001 7.7 [62.2 %] [61.1 %] <0.0001 2.4 [62.4 %] [65.2 %] <0.0001 5.9 [60.2 %] [66.4 %] <0.0001 0.1
US geographic region
Northeast [39.3 %] [36.0 %] <0.0001 6.8 [35.3 %] [34.9 %] 0.0398 0.7 [33.1 %] [31.0 %] 0.0003 4.5 [35.8 %] [31.4 %] <0.0001 9.4
Midwest [22.1 %] [25.5 %] <0.0001 8.0 [26.2 %] [26.2 %] 0.2635 0.4 [27.2 %] [28.2 %] 0.0671 2.3 [25.0 %] [28.4 %] <0.0001 7.6
South [24.4 %] [26.3 %] <0.0001 4.4 [26.8 %] [27.3 %] 0.0006 1.3 [26.0 %] [28.3 %] <0.0001 5.2 [27.8 %] [30.4 %] <0.0001 5.7
West [14.2 %] [12.2 %] <0.0001 5.9 [11.5 %] [11.5 %] 0.864 0.1 [13.7 %] [12.5 %] 0.004 3.6 [11.3 %] [9.8 %] <0.0001 5.0
Baseline comorbid condition
Charlson comorbidity index (CCI) 2.72(2.15) 3.30(2.65) <0.0001 24.3 0.99(1.49) 2.10(2.27) <0.0001 57.6 0.53 (1.23) 0.92(1.69) <0.0001 26.6 0.22(0.78) 0.33 (1.05) <0.0001 11.4
Chronic disease score 5.28(4.06) 6.01(4.44) <0.0001 17.0 3.91(3.48) 5.70(4.24) <0.0001 46.2 4.17 (3.04) 4.70(3.40) <0.0001 16.6 1.16(1.94) 1.28 (2.22) <0.0001 5.8
Baseline number of inpatient visits PPPM 0.19(0.49) 0.39(0.84) <0.0001 28.8 0.04(0.19) 0.18(0.52) <0.0001 36.1 0.03 (0.19) 0.10(0.35) <0.0001 24.3 0.01 (0.07) 0.03 (0.20) <0.0001 15.6

CHD RE coronary heart disease risk equivalent, SD standard deviation, STD standardized difference, CV cardiovascular, CVD cardiovascular disease, PPPM per patient per month

aChi-square tests were used to evaluate the statistical significance of differences in categorical variables; student t-tests were used for the continuous variables