Table 1 Baseline characteristics of patients with TAAAD onset in different seasons
Characteristic | Winter (N = 154) | Spring (N = 115) | Summer (N = 73) | Autumn (N = 143) | P value |
|---|---|---|---|---|---|
Age, years | 54.2 ± 12.4 | 56.2 ± 10.6 | 53.7 ± 11.2 | 53.3 ± 12.7 | 0.26 |
Male | 113 (73.4) | 84 (73.0) | 60 (82.2) | 108 (75.5) | 0.48 |
Smoker | 73 (47.4) | 59 (51.3) | 48 (65.8) | 81 (56.6) | 0.06 |
Alcohol consumption | 70 (45.5) | 58 (50.4) | 44 (60.3) | 74 (51.8) | 0.22 |
SBP, mm Hg | 139.3 ± 27.3 | 139.6 ± 28.3 | 136.4 ± 21.0 | 141.3 ± 32.0 | 0.69 |
DBP, mm Hg | 77.1 ± 15.0 | 75.7 ± 15.0 | 77.0 ± 12.0 | 75.9 ± 18.9 | 0.85 |
Heart rate, beats/min | 83.6 ± 16.0 | 83.1 ± 15.8 | 82.0 ± 16.4 | 84.5 ± 18.4 | 0.78 |
RBC count, × 1012 cells/L | 4.1 (3.6–4.6) | 4.2 (3.9–4.7) | 4.2 (3.7–4.5) | 4.2 (3.8–4.7) | 0.31 |
Platelet count, × 109 cells/L | 158.0 (119.0–207.0) | 170.0 (145.0–196.0) | 158.0 (125.0–199.0) | 170.5 (130.0–211.3) | 0.21 |
Serum creatinine, μmol/L | 92.0 (71.0–134.0) | 85.0 (70.2–129.0) | 93.0 (73.9–133.0) | 88.1 (69.2–135.0) | 0.63 |
Prothrombin time, s | 13.9 (13.1–14.9) | 13.7 (13.1–14.5) | 13.9 (13.3–14.9) | 14.2 (13.3–15.1) | 0.13 |
Serum total protein, g/L | 62.3 (57.7–66.9) | 63.9 (60.0–67.2) | 63.1 (59.9–67.9) | 62.9 (57.7–67.2) | 0.18 |
Serum albumin, g/L | 34.8 (30.7–38.3) | 35.5 (33.0–38.9) | 35.6 (32.9–38.9) | 35.5 (31.7–38.6) | 0.24 |
Serum globulin, g/L | 27.5 (24.3–30.5) | 27.7 (24.5–30.3) | 27.9 (25.4–30.8) | 27.4 (24.5–30.1) | 0.65 |
Surgical intervention | 115 (74.7) | 91 (79.1) | 64 (87.7) | 113 (79.0) | < 0.01 |