Table 1 Comparison of clinical features between two groups of patients before PSM
Variables | Total (n = 795) | No-anxiety group (n = 599) | Anxiety group (n = 196) | Statistic | P |
|---|---|---|---|---|---|
Age, M (Q₁, Q₃) | 74.00 (68.00, 81.00) | 74.00 (69.00, 81.00) | 73.00 (68.00, 82.00) | Z = 0.843 | 0.399 |
Gender, n (%) | χ²=1.724 | 0.189 | |||
Female | 177 (22.26) | 140 (23.37) | 37 (18.88) | ||
Male | 618 (77.74) | 459 (76.63) | 159 (81.12) | ||
Occupation, n (%) | χ²=1.766 | 0.184 | |||
Non-peasants | 381 (47.92) | 279 (46.58) | 102 (52.04) | ||
Peasants | 414 (52.08) | 320 (53.42) | 94 (47.96) | ||
Drinking, n (%) | χ²=0.108 | 0.742 | |||
No | 551 (69.31) | 417 (69.62) | 134 (68.37) | ||
Yes | 244 (30.69) | 182 (30.38) | 62 (31.63) | ||
Smoking, n (%) | χ²=0.202 | 0.653 | |||
No | 445 (55.97) | 338 (56.43) | 107 (54.59) | ||
Yes | 350 (44.03) | 261 (43.57) | 89 (45.41) |