Table 3 Pairwise agreement (%) for mean arterial pressure, systolic blood pressure and diastolic blood pressure between invasive and non-invasive measurements in patients with TBI and sICH

Mean arterial pressure

≤10%

56.4 (53.3–59.4)

57.4 (54.0–60.8)

51.8 (44.7–58.9)

≤20%

79.3 (76.7–81.7)

80.9 (78.2–83.6)*

72.5 (66.1–78.9)

≤30%

86.2 (83.8–88.2)

87.1 (84.8–89.4)

82.4 (77.0–87.8)

Systolic blood pressure

≤20%

76.1 (73.3–78.6)

77.0 (74.1–79.9)

72.0 (65.6–78.4)

≤30%

87.1 (84.8–89.0)

88.3 (86.1–90.5)*

81.9 (76.4–87.4)

≤40%

92.5 (90.7–94.0)

93.2 (91.4–95.0)

89.6 (85.3–93.9)

Diastolic blood pressure

≤20%

64.9 (61.9–67.8)

65.5 (62.2–68.8)

62.2 (55.3–69.1)

≤30%

77.7 (75.0–80.2)

79.2 (76.4–82.0)*

71.5 (65.0–78.0)

≤40%

84.8 (82.4–86.9)

86.1 (83.7–88.5)*

79.3 (73.5–85.1)