Table 2 Demographic data of participants. Chi-square test or Fisher’s exact test were calculated between PI yes/no and variables
Variables | All (n = 5902) | Without PI (n = 5155) | With PI, all grades (n = 747) | χ2 -value (df) | P-value |
|---|---|---|---|---|---|
Type of hospital | |||||
University hospital | 3684 (62.4) | 3210 (62.3) | 474 (63.5) | - (-) | 0.55b |
Central hospital | 2218 (37.6) | 1945 (37.7) | 273 (36.5) | ||
Total | 5902 (100.0) | 5155 (100.0) | 747 (100.0) | ||
Gender | |||||
Male | 3020 (51.3) | 2625 (51.1) | 395 (53.1) | - | 0.31b |
Female | 2866 (48.7) | 2517 (48.9) | 349 (46.9) | ||
Total | 5886 (100.0) | 5142 (100.0) | 744 (100.0) | ||
Age, years | |||||
< 40 | 554 (9.5) | 519 (10.2) | 35 (4.7) | 72.73 (3) | < 0.01a |
40–65 | 1882 (32.3) | 1700 (33.5) | 182 (24.6) | ||
66–80 | 2258 (38.8) | 1942 (38.2) | 316 (42.6) | ||
> 80 | 1128 (19.4) | 920 (18.1) | 208 (28.1) | ||
Total | 5822 (100.0) | 5081 (100.0) | 741 (100.0) | ||
Mobility | |||||
Independent | 3832 (65.3) | 3549 (69.2) | 283 (38.1) | 311.22 (3) | < 0.01a |
Needs assistance to move | 1136 (19.3) | 952 (18.6) | 184 (24.7) | ||
Wheelchair | 394 (6.7) | 304 (5.9) | 90 (12.1) | ||
Bedridden | 511 (8.7) | 324 (6.3) | 187 (25.1) | ||
Total | 5873 (100.0) | 5129 (100.0) | 744 (100.0) | ||
Mode of arrival | |||||
Emergency care | 2901 (49.6) | 2524 (49.3) | 377 (51.0) | 109.85 (2) | < 0.01a |
Elective | 1765 (30.2) | 1641 (32.1) | 124 (16.8) | ||
Other | 1187 (20.2) | 949 (18.6) | 238 (32.2) | ||
Total | 5853 (100.0) | 5114 (100.0) | 739 (100.0) | ||