Table 1. Admission characteristics and laboratory values of outborn and inborn infants.
| Minimum temperature <30 °C, n=5 | Minimum temperature 30–32 °C, n=7 | Minimum temperature 32.1–35 °C, n=23 | Minimum temperature ⩾35.1 °C (no transport cooling), n=5 | All outborn, n=40 | Inborn, n=10 | |
|---|---|---|---|---|---|---|
| Gestational age (weeks) | 38.8±1.1 | 38.1±2.7 | 38.8±1.1 | 38.0±2.6 | 38.5±1.9 | 37.9±2.2 |
| Birth weight (g) | 2914±415 | 2973±917 | 3284±693 | 3853±971 | 3228±750 | 3197±845 |
| Degree of encephalopathy (moderate/severe) | 2/3 | 3/4 | 16/7 | 3/2 | 24/16 | 4/6 |
| Age at start of cooling, passive or active (h) | 1.9±1.3 | 2.5±1.5 | 3.0±1.6 | 8.1±6.5 | 3.5±3.2 | 0.9±0.7 |
| Age at arrival of transport team (h) | 2.6±1.2 | 2.7±1.5 | 3.0±1.4 | 2.8±1.8 | 2.9±1.4 | N/A |
| Age at arrival to UVA (h) | 6.1±1.0 | 5.8±2.2 | 6.1±2.0 | 5.8±2.9 | 5.9±2.1 | N/A |
| Age when temperature reached <34 °C (h) | 3.2±1.7 | 3.4±0.4 | 4.3±2.0 | 9.8±6.1 | 4.7±3.2 | 2.6±1.8 |
| HR (bpm) | 111±23 | 104±16 | 113±20 | 147±31 | 116±24 | 143±13 |
| Blood pressure (mean, mm Hg) | 55±7 | 49±6 | 50±11 | 53±5 | 51±11 | 43±7 |
| Platelet count (k μl−1) | 136±32 | 146±56 | 193±84 | 234±110 | 183±82 | 207±81 |
| PT (s) | 21.9±5.1 | 27.0±8.9 | 24.9±10.7 | 21.6±8.8 | 24.5±9.7 | 26.0±5.8 |
| INR | 1.8±0.5 | 2.3±0.9 | 2.0±1.2 | 2.0±1.1 | 2.1±1.1 | 2.2±0.5 |
| AST (U l−1) | 121±80 | 398±597 | 575±1082 | 260±209 | 451±866 | 316±391 |
| ALT (U l−1) | 40±22 | 343±714 | 211±273 | 110±165 | 208±423 | 91±108 |
| Creatinine (mg per 100 ml) | 0.8±0.2 | 1.1±0.1 | 0.9±0.3 | 1.3±0.6 | 1.0±0.3 | 0.9±0.1 |
| Glucose (mg per 100 ml) | 191±88 | 188±116 | 139±65 | 73±16 | 142±82 | 143±90 |
Abbreviations: N/A, not applicable; UVA, University of Virginia; HR, heart rate; PT, prothrombin time; INR, international normalized ratio; AST, aspartate aminotransferase; ALT, alanine aminotransferase.