Table 2 Risk factors and basic knowledge in CSCA cohort (N: number of people)
Basic information | Total patients (n = 70,540) | With pneumonia (n = 18,190) | Without pneumonia (n = 52,350) | P values |
|---|---|---|---|---|
Male (n%) | 44,123 (62.55%) | 11,864 (65.22%) | 32,259 (61.62%) |  < 0.01 |
Age (mean) | 62.48 | 65.03 | 61.59 |  < 0.01 |
 < 60 (N) | 28,305 | 5908 (32.48%) | 22,397 (42.783%) |  < 0.01 |
60 ≤ age < 70 (N) | 18,435 | 4636 (25.49%) | 13,799 (26.36%) | 0.01 |
70 ≤ age < 80 (N) | 12,839 | 4,013 (22.06%) | 8826 (16.86%) |  < 0.01 |
80 ≤ age < 90 (N) | 5644 | 2,170 (11.93%) | 3474 (6.64%) |  < 0.01 |
age ≥ 90 (N) | 5317 | 1,463 (8.04%) | 3854 (7.36%) |  < 0.01 |
mRS at hospital (mean) | 2.11 | 2.45 | 2.00 |  < 0.01 |
 ≤ 4 (N) | 60,044 | 13,764 (75.67%) | 46,280 (88.41%) |  < 0.01 |
 ≥ 5 (5,6) (N) | 10,496 | 4,426 (24.33%) | 6,070 (11.60%) | 0.02 |
NIHSS score (mean) | 8.17 | 13.51 | 6.69 |  < 0.01 |
 < 10 (N) | 15,348 | 2061 (11.33%) | 13,287 (25.38%) |  < 0.01 |
10–16 (N) | 2825 | 928 (5.10%) | 1897 (3.62%) | 0.03 |
 > 16 (N) | 2983 | 1523 (8.37%) | 1460 (2.79%) | 0.05 |
GCS (mean) | 11.42 | 9.68 | 12.17 |  < 0.01 |
 ≥ 10 (N) | 24,615 | 5527 (30.38%) | 19,088 (36.46%) |  < 0.01 |
 < 10 (N) | 10,847 | 5165 (28.40%) | 5,682 (10.85%) |  < 0.01 |
Smoking | 14,165 | 3780 (20.78%) | 10,385 (19.83%) |  < 0.01 |
COPD | 1,026 | 517 (2.84%) | 509 (0.97%) | 0.01 |
Dysphagia | 11,379 | 6663 (36.63%) | 4,716 (9.01%) |  < 0.01 |
CRP (> 10 mg/l) | 854 | 318 (1.75%) | 536 (1.02%) |  < 0.01 |
Creatinine (µmol/l) | 83.16 | 86.37 | 82.06 |  < 0.01 |
Uric acid (µmol/l) | 288.56 | 280.83 | 291.25 |  < 0.01 |
Fasting blood glucose (mmol/l) | 6.54 | 7.00 | 6.38 |  < 0.01 |
 < 7.8 | 56,617 | 13,421 (73.78%) | 43,196 (82.51%) |  < 0.01 |
7.8–11.1 | 8708 | 3059 (16.81%) | 5649 (10.79%) |  < 0.01 |
 ≥ 11.1 | 3805 | 1349 (7.42%) | 2456 (4.69%) | 0.02 |