Table 2 Background and intensive care unit variables from the 10 intensive care units
From: Patients' recollections of experiences in the intensive care unit may affect their quality of life
Variable | Total (n = 464) | ICU 1 (n = 39) | ICU 2 (n = 74) | ICU 3 (n = 38) | ICU 4 (n = 66) | ICU 5 (n = 44) | ICU 6 (n = 32) | ICU 7 (n = 59) | ICU 8 (n = 16) | ICU 9 (n = 54) | ICU 10 (n = 42) | P |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Background data | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Sex, n (%) |  |  |  |  |  |  |  |  |  |  |  |  |
Male | 281 (61) | 25 (64) | 46 (62) | 22 (58) | 37 (56) | 30 (62) | 19 (59) | 32 (54) | 10 (62) | 34 (63) | 26 (62) | 0.995a |
Female | 183 (39) | 14 (36) | 28 (38) | 16 (42) | 29 (44) | 14 (32) | 13 (41) | 27 (46) | 6 (38) | 20 (37) | 16 (38) | Â |
   Median age, years (P25–P75) | 58 (43–69) | 44 (32–55) | 55 (44–69) | 65 (56–71) | 53 (39–56) | 59 (41–68) | 55 (28–67) | 62 (48–73) | 68 (54–77) | 62 (47–73) | 57 (43–69) | 0.016b |
   Main activity, n (%) |  |  |  |  |  |  |  |  |  |  |  |  |
Employed | 128 (29) | 14 (38) | 19 (26) | 6 (17) | 28 (45) | 11 (26) | 8 (27) | 12 (21) | 2 (12) | 7 (13) | 21 (50) | 0.011a |
Retired | 216 (48) | 12 (32) | 36 (49) | 19 (54) | 24 (39) | 24 (56) | 12 (40) | 30 (53) | 12 (75) | 33 (65) | 14 (33) | Â |
Housework/student/seeking work | 58 (13) | 6 (16) | 9 (12) | 7 (20) | 5 (8) | 3 (7) | 7 (23) | 8 (14) | 2 (12) | 5 (10) | 6 (14) | Â |
Other | 44 (10) | 5 (14) | 9 (12) | 3 (9) | 5 (8) | 5 (11) | 3 (10) | 7 (12) | 0 (0) | 6 (12) | 1 (2) | Â |
   Previous health state, n (%) |  |  |  |  |  |  |  |  |  |  |  |  |
Healthy | 183 (39) | 19 (49) | 16 (22) | 10 (26) | 28 (42) | 19 (43) | 21 (66) | 31 (52) | 1 (6) | 15 (28) | 23 (55) | <0.001a |
Chronic non-disabling disease | 203 (44) | 13 (33) | 51 (69) | 23 (61) | 19 (29) | 12 (27) | 11 (34) | 20 (34) | 11 (69) | 32 (59) | 11 (26) | Â |
Chronic disabling disease | 78 (17) | 7 (18) | 7 (9) | 5 (13) | 19 (29) | 13 (30) | 0 (0) | 8 (14) | 4 (25) | 7 (13) | 8 (19) | Â |
ICU variables | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Median SAPS II at admission (P25–P75) | 31 (22–41) | 31 (17–40) | 30 (17–39) | 31 (24–46) | 26 (19–35) | 31 (18–42) | 38 (27–44) | 30 (22–37) | 28 (21–47) | 31(23–42) | 39 (29–52) | 0.004b |
   Median days in ICU (P25–P75) | 4 (2–10) | 7 (2–11) | 1 (1–3) | 5 (1–9) | 5 (2–10) | 4 (2–8) | 10 (6–17) | 4 (1–11) | 2 (1–6) | 3 (1–9) | 7 (3–12) | 0.434b |
   Admission category, n (%) |  |  |  |  |  |  |  |  |  |  |  |  |
Medical | 214 (46) | 16 (41) | 24 (32) | 27 (71) | 28 (42) | 19 (43) | 21 (66) | 26 (44) | 4 (25) | 31 (57) | 18 (43) | <0.001a |
Scheduled surgery | 144 (32) | 3 (8) | 42 (57) | 10 (26) | 23 (35) | 18 (41) | 2 (6) | 17 (29) | 10 (63) | 10 (19) | 9 (21) | Â |
Non-scheduled surgery | 62 (13) | 9 (23) | 6 (8) | 1 (3) | 13 (20) | 7 (16) | 3 (9) | 12 (20) | 1 (6) | 5 (9) | 5 (12) | Â |
Multiple trauma | 44 (9) | 11 (28) | 2 (3) | 0 (0) | 2 (3) | 0 (0) | 6 (19) | 4 (7) | 1 (6) | 8 (15) | 10 (24) | Â |