Table 2.
Characteristics of MAP during mono-vasopressor infusion.
| Hospital 1a | Hospital 2a | ||||
|---|---|---|---|---|---|
| Stays w/sustained hypotensionb | Stays w/non-sustained hypotensionb | Stays w/o hypotensionb | All Stays | All Stays | |
| Statistics: | |||||
| MAP during infusion, median per stay (IQR), mmHg | 68 (65–72) | 75 (71–78) | 80 (76–87) | 73 (67–79) | 75 (71–79) |
| MAP hourly standard deviation during infusion, median per stay (IQR), mmHg | 4.0 (2.9–5.5) | 3.6 (2.3–4.5) | 3.3 (2.5–4.8) | 3.8 (2.7–5.5) | 3.8 (2.9–4.9) |
| Proportion of 100 ≥ MAP ≥ 60 mmHg, median per stay (IQR), % | 80 (70–88) | 97 (93–99) | 100 (89–100) | 91 (78–98) | 98 (92–99) |
| Proportion of MAP during transient hypotension, median per stay (IQR), % | 3.7 (1.8–5.9) | 1.3 (0.5–3.5) | n/a | 1.6 (0.0–4.4) | 0.3 (0.0–1.3) |
| Proportion of MAP during sustained hypotension, median per stay (IQR), % | 11 (4–21) | n/a | n/a | 0.1 (0.0–11) | 0.0 (0.0–2.5) |
| Proportion of MAP during hypertensionc, median per stay (IQR), % | 0.1 (0.0–3.0) | 0.1 (0.0–2.9) | 0.2 (0.0–11) | 0.1 (0.0–3.5) | 1.0 (0.0–3.2) |
| Sustained episodes of hypotension per 24 hours, median per 24 hours (IQR), n | 2.5 (1.1–5.0) | n/a | n/a | 0.0 (0.0–3.0) | 0.0 (0.0–1.2) |
aHospital 1 includes patient data from the MIMIC II database and Hospital 2 includes patient data from a separate medical center. bHypotension is defined as MAP < 60 mmHg and sustained episode of hypotension is defined as ≥15 min; see text for details. cHypertension defined as MAP > 100 mmHg.