Table 1 Comparison of basic characteristics between two groups
Variable | Intervention group (n = 51), n(%) | Control group (n = 50), n(%) | χ2 value | P value |
|---|---|---|---|---|
Gender | 6.194 | 0.091 | ||
Male | 34 (66.7) | 21 (42.0) | ||
Female | 17 (33.3) | 29 (58.0) | ||
Age (years) | 64.06 ± 9.43 | 63.42 ± 9.06 | 6.229 | 0.596 |
45–49 | 0 (0.0) | 4 (8.0) | ||
50–59 | 17 (33.3) | 12 (24.0) | ||
60–69 | 17 (33.3) | 20 (40.0) | ||
70–79 | 16 (31.4) | 14 (28.0) | ||
≥ 80 | 1 (2.0) | 0 (0.0) | ||
Living arrangement | 0.232 | 0.34 | ||
Living alone | 2 (3.9) | 3 (6.0) | ||
Not living alone | 49 (96.1) | 47 (94.0) | ||
Education level | 1.819 | 0.992 | ||
Primary school and below | 15 (29.4) | 20 (40.0) | ||
Junior high school | 19 (37.3) | 18 (36.0) | ||
Senior high school | 14 (27.4) | 9 (18.0) | ||
University and above | 3 (5.9) | 3 (6.0) | ||
Pre-retirement occupation | 6.257 | 0.064 | ||
Civil servant | 2 (3.9) | 0 (0.0) | ||
Staff of enterprises and institutions | 34 (66.7) | 34 (68.0) | ||
Farmer | 7 (13.8) | 13 (26.0) | ||
Freelancer | 4 (7.8) | 1 (2.0) | ||
Unemployed | 4 (7.8) | 2 (4.0) | ||
Family monthly income (RMB) | 7188.24 ± 4894.87 | 12,250.00 ± 4780.47 | 29.074 | 0.965 |
< 5000 | 20 (39.2) | 0 (0.0) | ||
5000–10,000 | 19 (37.3) | 24 (46.0) | ||
10,000–15,000 | 5 (9.8) | 11 (24.0) | ||
15,000–20,000 | 7 (13.7) | 9 (18.0) | ||
≥ 20,000 | 0 (0.0) | 6 (12.0) | ||
Smoking or not | 0.983 | 0.054 | ||
Yes | 19 (37.3) | 12 (24.0) | ||
No | 32 (62.7) | 38 (76.0) | ||
Drinking or not | 0.252 | 0.32 | ||
Yes | 9 (17.6) | 7 (14.0) | ||
No | 42 (82.4) | 43 (86.0) | ||
BMI(kg/m2) | 24.55 ± 3.49 | 24.61 ± 3.37 | 0.365 | 0.494 |
< 18.5 | 2 (3.9) | 1 (2.0) | ||
18.5–23.9 | 21 (41.2) | 20 (40.0) | ||
≥ 24 | 28 (54.9) | 29 (58.0) | ||
Comorbidities | 3.034 | 0.699 | ||
coronary heart disease | 29 | 28 | ||
diabetes mellitus | 23 | 21 | ||
heart failure | 18 | 20 | ||
hyperlipidemia | 28 | 17 | ||
renal insufficiency | 21 | 17 | ||
renal artery stenoses | 10 | 13 |