Table 1 Patients’ baseline characteristics
Observation indicators | Pre-PSM | Post-PSM | ||||
|---|---|---|---|---|---|---|
Group A (n = 187) | Group B (n = 153) | P-value | Group A (n = 142) | Group B (n = 105) | P-value | |
Gender | ||||||
 Male | 40 (21.39%) | 40 (26.14%) | 0.304 | 33 (23.2%) | 25 (23.8%) | 1.000 |
 Female | 147 (78.61%) | 113 (73.86%) | 109 (76.8%) | 80 (76.2%) | ||
Age | 42.50 (9.85) | 42.10 (10.31) | 0.143 | 41.35 (9.818) | 42.78 (9.610) | 0.255 |
Marital status | ||||||
 Unmarried | 11 (5.88%) | 15 (9.80%) | 0.388 | 10 (7.0%) | 11 (10.5%) | 0.597 |
 Married | 174 (93.05%) | 136 (88.89%) | 130 (91.5%) | 92 (87.6%) | ||
 Divorced or widowed | 2 (1.07%) | 2 (1.31%) | 2 (1.4%) | 2 (1.9%) | ||
Education | ||||||
 Junior high school | 13 (6.95%) | 31 (20.26%) | < 0.01 | 10 (7.0%) | 9 (8.6%) | 0.834 |
 Senior high school | 47 (25.13%) | 52 (33.99%) | 42 (29.6%) | 33 (31.4%) | ||
 Undergraduate and above | 127 (67.91%) | 70 (45.75%) | 90 (63.4%) | 63 (60.0%) | ||
BMI | 21.66 [20.05, 23.90] | 21.81 [20.50, 23.81] | 0.627 | 22.42 [20.04, 24.41] | 22.21 [20.42, 23.73] | 0.570 |
PONV risk | ||||||
 Non-high risk | 74 (39.57%) | 60 (39.22%) | 0.947 | 48 (33.8%) | 42 (40.0%) | 0.386 |
 High risk | 113 (60.43%) | 93 (60.78%) | 94 (66.2%) | 63 (60.0%) | ||
ASA | ||||||
1 | 1 (0.53%) | 3 (1.96%) | 0.675 | 1 (0.7%) | 1 (1.0%) | 0.954 |
2 | 185 (98.93%) | 148 (96.73%) | 140 (98.6%) | 103 (98.1%) | ||
3 | 1 (0.53%) | 2 (1.31%) | 1 (0.7%) | 1 (1.0%) | ||