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Case mix for admissions with chronic obstructive pulmonary disease by subgroup |
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| All (n = 3752) |
I. Pneumonia (n = 775) |
II. Right VF (n = 147) |
III. Left VF (n = 142) |
|
|
|
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| 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 [%]) |
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| Respiratory impairment |
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| 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: |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 [%]) |
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| 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) |
|
aDuring 24 hours before unit admission. bDuring first 24 hours following unit admission. cTaken from ABG with lowest pH. d Taken from ABG with lowest PaO2. ABG, arterial blood gas; APACHE, Acute Physiology and Chronic Health Evaluation; APS, Acute Physiology Score; CPR, cardiopulmonary resuscitation; FiO2, fractional inspired oxygen; IQR, interquartile range; PaO2, arterial carbon dioxide tension; PaO2, arterial oxygen tension; SD, standard deviation; VF, ventricular failure. | ||||
Wildman et al. Critical Care 2005 9(Suppl 3):S38 doi:10.1186/cc3719 |
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