Table 2 -. Association of risk classification categories with Modified Early Warning Score, clinical deterioration, clinical parameters and outcomes (n=372). São Paulo, SP, Brazil, 2020.
| Variables | Risk Classification | Total | p-value | |||
|---|---|---|---|---|---|---|
| Blue/Green n (%) | Yellow n (%) | Orange n (%) | Red n (%) | |||
| Modified Early Warning Score | ||||||
| Mean(SD *) | 2.54(1.14) | 2.81(1.35) | 3.45(1.46) | 4.29(1.77) | 3.34(1.58) | <0.0001 † |
| Median(Min-Max) | 3(1-5) | 3(0-8) | 3(1-9) | 4(1-9) | 3(0-9) | |
| Total | 41 | 107 | 148 | 76 | 372 | |
| Clinical Risk | ||||||
| MEWS ‡ >4B | 2(2.8) | 9(12.5) | 30(41.7) | 31(43.1) | 72(19.4) | |
| MEWS ‡ <4 | 39(13) | 98(32.7) | 118(39.3) | 45(15) | 300(80.6) | <0.000 1§ |
| Total | 41 | 100 | 348 | 76 | 372 | |
| Respiratory rate (brpm ||) | ||||||
| <15 | 1(2.4) | 7(6.5) | 3(2) | 1(1.3) | 12(3.2) | <0.0001 ¶ |
| 15 – 20 | 11(26.8) | 20(18.7) | 20(13.5) | 6(7.9) | 57(15.3) | |
| 21 – 29 | 23(56.1) | 63(58.9) | 69(46.6) | 22(28.9) | 177(47.6) | |
| >29 | 6(14.6) | 17(15.9) | 56(37.8) | 47(61.8) | 126(33.9) | |
| Total | 41 | 107 | 148 | 76 | 372 | |
| Systolic Blood Pressure (mmHg **) | ||||||
| 71 – 80 | - | 1(0.9) | 5(3.4) | 6(7.9) | 12(3.2) | 0.0227 ¶ |
| 81 – 100 | 2(4.9) | 5(4.7) | 13(8.8) | 10(13.2) | 30(8.1) | |
| >101 | 39(95.1) | 101(94.4) | 130(87.8) | 60(78.9) | 330(88.7) | |
| Total | 41 | 107 | 148 | 76 | 372 | |
| Level of consciousness | ||||||
| Alert (0) | 40(97.6) | 104(97.2) | 131(88.5) | 54(71.1) | 329(88.4) | <0.0001 ¶ |
| Confused (+1) | 1(2.4) | 1 (0.9%) | 14(9.5) | 13(17.1) | 29(7.8) | |
| Response to pain (+2) | - | 2(1.9) | 2(1.4) | 5(6.6) | 9(2.4) | |
| Unconscious (+3) | - | - | 1(0.7) | 4(5.3) | 5(1.3) | |
| Total | 41 | 107 | 148 | 76 | 372 | |
| Time to deterioration | ||||||
| ≤24 hours | 12(29.3) | 35(32.7) | 60(40.5) | 53(69.7) | 160(43) | <0.0000 § |
| >24 hours | 8(19.5) | 28(26.2) | 47(31.8) | 15(19.7) | 98(26.3) | |
| No deterioration | 21(51.2) | 44(41.1) | 41(27.7) | 8(10.5) | 114(30.6) | |
| Total | 41 | 107 | 148 | 76 | 372 | |
| Final outcome (n=328) | ||||||
| Discharge | 33(82.5) | 77(73.3) | 106(71.6) | 42(56.8) | 258(70.3) | 0.0149 ¶ |
| Death | 4(10) | 23(21.9) | 34(23) | 30(40.5) | 91(24.8) | |
| Transfer | 3(7.5) | 5(4.8) | 8(5.4) | 2(2.7) | 18(4.9) | |
| Total | 40 | 105 | 148 | 74 | 367 | |
*SD = Standard Deviation; †Fisher’s Exact Test; ‡MEWS = Modified Early Warning Score; §Mann-Whitney Test; ||brpm = Breaths per minute; ¶Chi-Square Test; **mmHg = Millimeters of mercury