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. Author manuscript; available in PMC: 2025 Mar 1.
Published in final edited form as: J Trauma Acute Care Surg. 2023 Nov 13;96(3):443–454. doi: 10.1097/TA.0000000000004187

Table 2:

Time-specific vital signs and laboratory values during first 24 hours following initiation of transfusion for trauma patients undergoing UMT stratified by mortality

Model Overall Overall Survival 48-hour Survival
Time
Interval
Variable Deceased Survivors p-value Deceased Survivor p-value
0-2 hours n = 180 n = 94 n = 86 n = 72 n = 107
Heart Rate 120 [98, 137] 119 [89, 137] 123 [104, 136] 0.177 114 [86, 134] 125 [106, 138] 0.018*
SBP 94 [84, 109] 96 [82, 108] 93 [84, 110] 0.964 96 [85, 112] 93 [84, 107] 0.455
Lactate 10.8 [7.5, 14.5] 13.7 [8.2, 15.7] 10.2 [5.2, 12.4] 0.126 14 [13.3, 15.7] 10 [6.8, 12.7] 0.461
Base Deficit −16.8 [−21.5, −11.4] −20 [−25.0, −13.0] −16 [−19.0, −10.8] 0.215 −20 [−25, −13] −16 [−19, −10.8] 0.215
pH 7.0 [6.9, 7.2] 6.9 [6.8, 7.1] 7.1 [7.0, 7.2] 0.077 6.9 [6.8, 7.1] 7.1 [7, 7.2] 0.077
Hemoglobin 12 [10.7, 13.2] 11.7 [10.4, 12.6] 12.1 [11.1, 13.5] 0.208 11.6, [10.1, 12.4] 12.2 [11.1, 13.3] 0.027*
Platelets 206 [151, 239] 187 [134, 245] 206 [173, 227] 0.810 151 [120, 209] 217 [175, 247] 0.001*
2-4 hours n = 180 n = 92 n = 86 n = 71 n = 106
Heart Rate 105 [96, 127] 113 [103, 128] 104 [83,127] 0.143 113 [104, 128] 103 [84, 127] 0.284
SBP 111 [104, 121] 108 [98, 116] 115 [110, 121] 0.243 113 [104, 120] 111 [105, 121] 0.677
Lactate 10 [7.2, 16.2] 12.6 [9.5, 25.0] 7.5 [5.3, 10.0] 0.063 18.8 [12.5, 25] 9.8 [6.5, 14.4] 0.415
Base Deficit −11.8 [−17.0, −5.0] −14.3 [−17.0, −8.4] −7.0 [−14.0, −3.0] 0.033* −15.5 [−18.2, −10.2] −8 [−13.5, −4.0] 0.006*
pH 7.2 [7.0, 7.3] 7.1 [7.0, 7.2] 7.2 [7.2, 7.3] 0.012* 7.1 [7.0, 7.1] 7.2 [7.2, 7.3] 0.004*
Hemoglobin 10.7 [9.7, 12.6] 10.5 [9.6, 12.2] 11.1 [10.2, 13.1] 0.941 10.4 [8.7, 12.2] 10.9 [10.3, 12.6 0.848
Platelets 149 [82, 251] 86 [59, 148] 199 [141, 312] 0.003* 78 [59, 117] 179 [137, 280] 0.013*
4-8 hours n = 180 n = 83 n = 86 n = 62 n = 107
Heart Rate 113 [91, 129] 117 [96, 130] 110 [85, 127] 0.038* 117 [101, 130] 111 [87, 128] 0.032*
SBP 117 [102, 136] 107 [93, 127] 126 [110, 141] < 0.001* 102 [91, 117] 127 [109, 140] < 0.001*
Lactate 8.0 [5.0, 15.1] 14.6 [8.5, 16.5] 5.2 [3.8, 7.7] < 0.001* 15.2 [9.4, 17.1] 5.4 [4, 10] < 0.001*
Base Deficit −7.2 [−11.4, −1.8] −9.8 [−15, −5.8] −3 [−8.4, 0.6] < 0.001* −13 [--16.8, −8.3] −3.5 [−8.5, −0.6] < 0.001*
pH 7.2 [7.1, 7.4] 7.2 [7.0, 7.2] 7.2 [7.1, 7.4] < 0.001* 7.1 [7.0, 7.2] 7.3 [7.2, 7.4] < 0.001*
Hemoglobin 10.6 [9.5, 12.2] 9.7 [8.6, 10.9] 11.7 [10.2, 13.1] 0.011* 9.5 [8.2, 10.5] 11.6 [10.2, 12.9] 0.032*
Platelets 65 [42, 86] 59 [36, 80] 73 [50, 88] 0.073 62 [34, 77] 67 [48, 88] 0.076*
8-12 hours n = 180 n = 56 n = 86 n = 35 n = 107
Heart Rate 111[99, 126] 118 [100,131] 110 [99, 121] 0.099 123 [112, 132] 109 [97, 122] 0.080*
SBP 117 [102, 131] 106 [98, 126] 121 [107, 132] 0.009 102 [85, 117] 121 [105, 133] 0.001*
Lactate 7.2 [4.0, 12.1] 12.2 [9.1, 14.7] 5.1 [3.2, 8.1] < 0.001* 13.2 [9.8, 16.9] 5.6 [3.4, 9.4] < 0.001*
Base Deficit −3.8 [−8.9, −0.6] −9.4 [−14, −3.7] −1.9 [−4.9, −1.2] < 0.001* −11.2 [−15, −6] −2.2 [−4.9, −0.1] < 0.001*
pH 7.3 [7.2, 7.4] 7.1 [7.1, 7.3] 7.3 [7.3, 7.4] < 0.001* 7.1 [7.1, 7.3] 7.3 [7.3, 7.4] < 0.001*
Hemoglobin 10.9 [8.9, 12.4] 10.1 [8.2, 11.5] 11.1 [10, 12.8] 0.013* 9.3 [8.2, 11.2] 11.1 [9.7, 12.8] 0.007*
Platelets 61 [42, 79] 53 [30, 71] 66 [51, 81] 0.027* 42 [27, 59] 67 [51, 83] < 0.001*
12-16 hours n = 180 n = 41 n = 86 n = 20 n = 107
Heart Rate 112 [98, 125] 118 [108, 127] 109 [95, 122] 0.016* 119 [106, 127] 111 [97, 124] 0.406
SBP 117 [102, 130] 108 [99, 122] 119 [106, 130] 0.047* 105 [99, 119] 117 [104, 130] 0.182
Lactate 4.9 [3.2, 8.2] 9.9 [7.6, 13.4] 3.6 [2.9, 5.8] < 0.001* 13.3 [10.6, 18.2] 3.8 [3.0, 6.9] < 0.001*
Base Deficit −1.4 [−5.4, 1.6] −5.3 [−8.2, −1.6] 0 [−3.0, 2.0] 0.139 −7.2 [−13.0, −5.0] −0.8 [−3.0, 1.7] 0.351
pH 7.4 [7.3, 7.4] 7.3 [7.1, 7.4] 7.4 [7.3, 7.4] 0.019* 7.2 [7.1, 7.4] 7.4 [7.3, 7.4] 0.086
Hemoglobin 11.3 [9.9, 12.9] 10.3 [9, 11.8] 11.5 [10.3, 13.2] 0.007* 9.1 [7.9, 11.6] 11.4 [10.1, 12.9] 0.002*
Platelets 66 [50, 86] 51 [35, 66] 71 [56, 96] 0.009* 51 [39, 55] 68 [55, 93] 0.001*
16-20 hours n = 180 n = 34 n = 86 n = 13 n = 106
Heart Rate 112 [97, 123] 114 [104, 132] 109 [91, 121] 0.023* 116 [107, 130] 111 [95, 122] 0.167
SBP 113 [105, 126] 116 [106, 130] 113 [105, 125] 0.718 115 [99, 120] 113 [106, 127] 0.351
Lactate 5.8 [3, 8.5] 8.3 [7.1, 12.8] 3.5 [2.6, 6] < 0.001* 13.1 [8.1, 15.9] 5.3 [2.8, 7.7] 0.003*
Base Deficit −0.4 [−5.5, 1.4] −5.1 [−8, −1.5] 0.5 [−3.2, 2.2] < 0.001* −6.4 [−11.4, −0.3] −0.1 [−4.2, 1.6] 0.018*
pH 7.4 [7.3, 7.4] 7.3 [7.2, 7.4] 7.4 [7.3, 7.4] < 0.001* 7.3 [7.1, 7.4] 7.4 [7.3, 7.4] 0.064
Hemoglobin 10.9 [9.9, 12.6] 10.2 [8.7, 11.8] 11.1 [10.2, 12.7] 0.011* 9.9 [9.2, 11.5] 11.0 [10.1, 12.6] 0.078
Platelets 69 [45, 92] 44 [37, 83] 76 [59, 96] 0.047* 43 [40, 45] 72 [57, 98] 0.001*
20-24 hours n = 180 n = 31 n = 86 n = 10 n = 107
Heart Rate 110 [94, 120] 108 [99, 129] 113 [91, 119] 0.008* 117 [108, 135] 109 [92, 120] 0.046*
SBP 112 [105, 127] 108 [99, 129] 113 [107, 127] 0.630 103 [99, 129] 113 [106, 127] 0.244
Lactate 4.4 [3.3, 7.2] 7.6 [5.4, 10.1] 4 [3, 4.8] 0.001* 12.6 [8.2, 17.2] 4.3 [3.2, 6.5] 0.067
Base Deficit −0.7 [−5, 1.8] −5 [−8.8, −0.3] 0.0 [−2.9, 2.4] 0.001* −8.8 [−11.0, −6.1] −0.6 [−2.9, 2.0] 0.001*
pH 7.4 [7.3, 7.4] 7.3 [7.2, 7.4] 7.4 [7.4, 7.4] 0.019* 7.2 [7.2, 7.3] 7.4 [7.3, 7.4] 0.014*
Hemoglobin 11.1 [9.6, 12.8] 10.4 [9.5, 12.1] 11.6 [10.1, 12.8] 0.443 10.0 [7.5, 10.8] 11.6 [9.8, 12.8] 0.037*
Platelets 65 [52, 90] 46 [37, 67] 68 [58, 94] < 0.001* 32 [22, 45] 67 [56, 91] < 0.001*

Systolic blood pressure (SBP), not applicable (n/a). Continuous variables reported as median with [Q1, Q3]