Baseline characteristics of patients with and without stroke-associated pneumonia
| Pneumonia group | Non-pneumonia group | p Value | |
|---|---|---|---|
| Age, median (IQR), year | 70.0 (61.0, 78.0) | 64.0 (53.0, 73.0) | <0.001* |
| Sex | 0.205 | ||
| Male, n, % | 134 (55.8) | 800 (60.2) | |
| Female, n, % | 106 (44.2) | 529 (39.8) | |
| Hypertension, n, % | 141 (58.8) | 764 (57.5) | 0.715 |
| Diabetes mellitus, n, % | 71 (29.6) | 371 (27.9) | 0.597 |
| Hyperlipaemia, n, % | 16 (38.1) | 142 (10.7) | 0.057 |
| History of stroke or TIA, n, % | 42 (17.5) | 169 (12.7) | 0.046* |
| Valvular heart disease, n, % | 2 (0.8) | 7 (0.5) | 0.563 |
| Coronary heart disease, n,% | 24 (10.0) | 58 (4.4) | <0.001* |
| Atrial fibrillation, n, % | 72 (30.0) | 109 (8.2) | <0.001* |
| Congestive heart failure, n, % | 3 (1.3) | 1 (<0.1) | <0.001* |
| COPD, n, % | 15 (6.3) | 16 (1.2) | <0.001* |
| History of pneumonia, n,% | 17 (7.1) | 50 (3.8) | 0.019* |
| Current smoking, n, % | 33 (13.8) | 148 (11.1) | 0.243 |
| Excess alcohol consumption, n, % | 25 (10.4) | 156 (11.7) | 0.555 |
| Found down at onset, n, % | 42 (17.5) | 80 (6.0) | <0.001* |
| Dyaphasia, n, % | 130 (9.8) | 272 (20.5) | <0.001* |
| NIHSS, median (IQR) score | 9.5 (5, 14.0) | 3.0 (1.0, 7.0) | <0.001* |
| GCS, median (IQR) score | 14.0 (11.0, 15.0) | 15.0 (14.0,15.0) | <0.001* |
| OCSP | <0.001* | ||
| Lacunar infarction, n, % | 7 (2.9) | 66 (4.9) | |
| Total anterior circulation infarct, n, % | 39 (16.3) | 61 (4.6) | |
| Partial anterior circulation infarct, n, % | 165 (68.8) | 939 (70.7) | |
| Posterior circulation infarct, n, % | 29 (12.1) | 263 (19.8) | |
| Glu, median (IQR) mmol/L | 6.73 (5.20, 8.60) | 5.64 (4.87, 7.13) | <0.001* |
| WCC, median (IQR) 1012/L | 8.34 (6.55, 10.71) | 6.69 (5.44, 8.22) | <0.001* |
*p<0.05.
COPD, chronic obstructive pulmonary disease; GCS, Glasgow Coma Scale; NIHSS, National Institutes of Health Stroke Scale; OCSP, Oxfordshire Community Stroke Project; TIA, transient ischaemic attack; WCC, white cell count.