Table 1 Comparison of background and intensive care unit variables between respondents and non-respondents
From: Patients' recollections of experiences in the intensive care unit may affect their quality of life
Variable | Total (n = 909) | Respondents (n = 464) | Non-respondents (n = 445) | P |
|---|---|---|---|---|
Background data | Â | Â | Â | Â |
   Sex, n (%) |  |  |  |  |
Male | 535 (59) | 281 (39) | 254 (42) | 0.286a |
Female | 374 (41) | 183 (61) | 254 (57) | Â |
   Median age, years (P25–P75) | 59 (42–70) | 58 (43–69) | 60 (41–72) | 0.212b |
   Main activity, n (%) |  |  |  |  |
Employed | 128 (29) | 128 (29) | - | Â |
Retired | 216 (49) | 216 (49) | - | Â |
Housework/student/seeking work | 58 (12) | 58 (12) | - | Â |
Other | 44 (10) | 44 (10) | - | Â |
   Previous health state, n (%) |  |  |  |  |
Healthy | 371 (41) | 182 (39) | 189 (42) | 0.228a |
Chronic non-disabling disease | 403 (44) | 203 (44) | 200 (45) | Â |
Chronic disabling disease | 135 (15) | 78 (17) | 57 (13) | Â |
ICU variables | Â | Â | Â | Â |
   Median SAPS II at admission (P25–P75) | 32 (22–42) | 31 (22–41) | 33 (22–43) | 0.209b |
   Median days in ICU (P25–P75) | 4 (2–10) | 4 (2–10) | 5 (2–10) | 0.297b |
   Admission category, n (%) |  |  |  |  |
Medical | 417 (46) | 214 (46) | 203 (46) | 0.011a |
Scheduled surgery | 247 (27) | 144 (32) | 103 (23) | Â |
Non-scheduled surgery | 138 (15) | 62 (13) | 76 (17) | Â |
Multiple trauma | 106 (12) | 44 (9) | 62 (14) | Â |