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. 2019 May 31;14(5):e0217535. doi: 10.1371/journal.pone.0217535

Table 1. Baseline characteristics of participants according to demographic data and clinical characteristics by groups (n%/x¯±s/Q2(Q1-Q3)).

Characteristic Intervention group (n = 70) Control group(n = 70) Total(n = 140) P Value
Agea 70.2±6.2 68.6±5.8 69.4±6.1 0.171
Sexb Male 48 (68.6%) 50 (71.4%) 98(70%) 0.712
Female 22 (31.4%) 20 (28.6%) 42 (30%)
Marital statusb Married 47 (67.1%) 54 (77.1%) 101(72.1%) 0.187
Single 23 (32.9%) 16 (22.9%) 39 (27.9%)
Education levelc Junior high school 55 (78.5%) 56 (80.0%) 111 (79.3%) 0.782
Senior high school 11 (15.7%) 9 (12.9%) 20 (14.3%)
College 4 (5.7%) 5 (7.1%) 9 (6.4%)
Incomec <1000 5(7.1%) 8(11.4%) 13 (9.3%) 0.765
1000~2000 41(58.6%) 39(55.7%) 80 (57.1%)
>2000 24(34.3%) 23(32.9%) 47 (33.6%)
Endovascular Stentsb 1 15 (21.4%) 20 (28.6%) 35 (25.0%) 0.499
2 34 (48.6%) 34 (48.5%) 68 (48.6%)
≥3 21 (30.0%) 16 (22.9%) 37 (26.4%)
Comorbidityb Yes 56 (80.0%) 52 (74.3%) 108 (77.1%) 0.581
No 14 (20.0%) 18 (25.7%) 32 (22.9%)
Smokingb Never 11 (15.7%) 8 (11.4%) 19 (13.6%) 0.472
Before 29 (41.4%) 25 (35.7%) 54 (38.6%)
Yes 30 (42.9%) 37 (52.9%) 67 (47.8%)
Systolic blood pressured 127.5(110.0–138.0) 130(120.0–140.0) 0.095
Diastolic blood pressured 75.0(70.0–84.0) 80(70.0–86.25) 0.058
Total cholesterola 4.21±1.33 4.43±1.24 -1.402 0.163
Triglyceridea 1.82±1.61 1.85±1.32 -0.114 0.912
High-density lipoprotein cholesterola 1.15±0.34 1.21±0.49 -1.119 0.263
Low-density lipoprotein cholesterola 2.49±1.09 2.78±0.98 -1.803 0.060
Body mass indexa 23.34±2.85 24.66±4.32 -0.864 0.412
Left ventricular ejection fractiona 42.56±8.70 42.61±10.42 42.58±9.57 0.968

aIndependent t-test was used to compare the means of two groups for a normally distributed data

bChi-square test was used to compare the proportion of two groups for categorical data

cFisher's exact (2-sided) test was used to compare the proportion of two groups for categorical data (if the expected value of each cell was less than five)

dMann-Whitney U test was used to compare the medians of two groups for a skewed data