Table 2 Characteristics of the ICUs
Variables | Categories | Total | Tertiary hospital | Secondary hospital | X2 | p |
|---|---|---|---|---|---|---|
Number of physicians | Median(Q1,Q3) | 7(5,11) | 10(7,17) | 6(4,7) | Â | Â |
Physician-to-bed ratio | Median(Q1,Q3) | 0.60(0.44,0.78) | 0.58(0.44,0.75) | 0.60(0.44,0.80) | Â | Â |
|  |  < 0.6 | 1425(50.53) | 730(52.78) | 695(48.36) | 5.330 | 0.0210 |
|  |  ≥ 0.6 | 1395(49.47) | 653(47.22) | 742(51.64) |  |  |
Number of nurses | Median(Q1,Q3) | 21(14,36) | 34(21,57) | 16(11,22) | Â | Â |
Bed-to-nurse ratio | Median(Q1,Q3) | 0.55(0.44, 0.71) | 0.52(0.42, 0.68) | 0.58(0.48,0.75) | Â | Â |
|  |  < 0.5 | 1000(35.46) | 590(42.66) | 410(28.53) | 60.858 |  < 0.001 |
|  |  ≥ 0.5 | 1820(64.54) | 793(57.34) | 1027(71.47) |  |  |
Single room in the ICU | Median(Q1,Q3) | 2(1,4) | 3(2,6) | 1(1,2) | Â | Â |
|  |  ≤ 1 | 1140(40.43) | 335(24.22) | 805(56.02) | 294.537 |  < 0.001 |
|  |  > 1 | 1680(59.57) | 1048(75.78) | 632(43.98) |  |  |
ECMO | Median(Q1,Q3) | 0(0,0) | 0(0,1) | 0(0,0) | Â | Â |
|  | 0 | 2370(84.04) | 956(69.13) | 1414(98.40) | 448.161 |  < 0.001 |
|  |  ≥ 1 | 450(15.96) | 427(30.87) | 23(1.60) |  |  |
Proportion of patient with an APACHEII score ≥ 15 in 24 h after admission (%) | Median(Q1,Q3) | 58.91(35.12,76.30) | 59.28(37.30,76.26) | 58.06(33.33,76.58) |  |  |
|  |  < 50% | 1342(47.59) | 619(44.76) | 723(50.31) | 8.499 | 0.003 |
|  |  ≥ 50 | 1478(52.41) | 764(55.24) | 714(49.69) |  |  |
6Â h SSC bundle compliance rate (%) | Median(Q1,Q3) | 80.00(50.00,100) | 82.85(55.94,100) | 75.00(42.86,100) | Â | Â |
|  |  < 90% | 1936(68.65) | 722(52.21) | 935(65.07) | 47.572 |  < 0.001 |
|  |  ≥ 90% | 884(31.35) | 661(47.79) | 502(34.93) |  |  |
Microbiology detection rate before antibiotic use(%) | Median(Q1,Q3) | 91.67(71.47,100) | 94.53(78.87,100) | 88.14(63.44,100) | Â | Â |
|  |  < 90% | 1485(52.66) | 622(44.97) | 863(60.06) | 63.692 |  < 0.001 |
|  |  ≥ 90% | 1335(47.34) | 761(55.03) | 574(39.94) |  |  |