Table 1 Case mix for admissions with chronic obstructive pulmonary disease by subgroup
All (n = 3752) | I. Pneumonia (n = 775) | II. Right VF (n = 147) | III. Left VF (n = 142) | |
|---|---|---|---|---|
Age (years; median [IQR]) | 67.8 (60.5–73.6) | 68.7 (61.4–74.0) | 68.8 (61.7–74.0) | 71.9 (67.2–75.1) |
Sex (n [%] male) | 1942 (51.8) | 401 (51.7) | 83 (56.5) | 81 (57.0) |
Past medical history (n [%]) | ||||
Respiratory impairment | ||||
Severe respiratory disease | 1236 (35.0) | 232 (31.6) | 57 (42.2) | 33 (25.2) |
Home ventilation | 70 (2.0) | 6 (0.8) | 6 (4.4) | 2 (1.5) |
Steroid treatment | 305 (8.6) | 61 (8.3) | 7 (5.2) | 8 (6.1) |
Comorbidity: | ||||
Liver disease | 6 (0.2) | 3 (0.4) | 0 (0.0) | 0 (0.0) |
Cardiovascular disease | 79 (2.2) | 11 (1.5) | 8 (5.9) | 10 (7.6) |
Chronic renal failure | 11 (0.3) | 1 (0.1) | 0 (0.0) | 0 (0.0) |
Immunosuppression | 27 (0.4) | 3 (0.1) | 1 (0.7) | 1 (0.8) |
Metastatic cancer | 6 (0.5) | 1 (0.4) | 0 (0.0) | 0 (0.0) |
Hospital stay prior to unit admission (days; median [IQR]) | 1 (0–3) | 1 (0–3) | 1 (0–2) | 0 (0–2) |
CPR prior to admission (n [%])a | 308 (8.3) | 45 (5.8) | 20 (13.8) | 12 (8.5) |
Intubation status (n [%])b | ||||
Definitely intubated | 2774 (73.9) | 605 (78.1) | 104 (13.8) | 103 (72.5) |
Probably intubated | 278 (7.4) | 56 (7.2) | 13 (8.8) | 9 (6.3) |
Not intubated | 700 (18.7) | 114 (14.7) | 30 (20.4) | 30 (21.2) |
Physiologyb | ||||
Lowest pH (median [IQR]) | 7.26 (7.18–7.33) | 7.26 (7.18–7.33) | 7.25 (7.19–7.33) | 7.24 (7.15–7.32) |
PaCO2 (kPa; median [IQR])c | 8.7 (6.9–10.7) | 8.6 (6.9–10.6) | 9.1 (7.2–11.7) | 7.6 (6.4–10.4) |
PaO2/FiO2 gradient (kPa; median [IQR])d | 22.9 (17.2–29.6) | 21.2 (15.3–27.8) | 20.9 (17.2–26.2) | 23.3 (15.9–29.3) |
Lowest serum albumin (g/l; median [IQR]) | 28 (23–33) | 26 (21–31) | 28 (25–32) | 30 (25–34) |
APACHE II | ||||
APS (mean [SD]) | 13.4 (5.6) | 14.3 (5.5) | 13.5 (5.1) | 14.6 (6.2) |
APS (median [IQR]) | 12 (10–16) | 13 (10–17) | 13 (10–17) | 14 (10–18) |
Score (mean [SD]) | 19.4 (6.4) | 20.3 (6.3) | 19.9 (5.8) | 20.7 (6.8) |
Score (median [IQR]) | 19 (15–23) | 19 (16–23) | 19 (16–24) | 20 (16–24) |
APACHE III | ||||
APS (mean [SD]) | 52.9 (21.5) | 55.9 (21.6) | 53.4 (20.0) | 56.8 (21.5) |
APS (median [IQR]) | 50 (39–64) | 52 (42–68) | 53 (41–66) | 55 (42–68) |
Score (mean [SD]) | 65.9 (23.0) | 69.3 (23.0) | 66.6 (21.8) | 71.6 (22.9) |
Score (median [IQR]) | 63 (50–78) | 66 (54–83) | 66 (52–80) | 69.5 (55–84) |
Organ system failures (n [%]) | ||||
0 | 457 (12.2) | 85 (11.0) | 19 (12.9) | 15 (10.6) |
1 Respiratory | 1767 (45.2) | 362 (45.0) | 56 (37.4) | 55 (33.8) |
1 Other | 214 (4.4) | 60 (9.3) | 5 (4.1) | 9 (8.5) |
2 | 1036 (27.6) | 215 (27.7) | 50 (34.0) | 50 (35.2) |
3 or more | 309 (8.2) | 54 (7.0) | 17 (11.6) | 17 (12.0) |