Table 2.
Mean BP, Pulse Pressure and AASI, by Age, Derived From Screening BP and 24 Hour ABPM
| Age Group, y | Mean Screening BP | 24‐Hour ABPM Measures | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Daytime Mean | Nighttime Mean | 24‐Hour Mean | Mean Stiffness Indices | |||||||
| Systolic | Diastolic | Systolic | Diastolic | Systolic | Diastolic | Systolic | Diastolic | Pulse Pressure | AASI | |
| 18–29 | 120 (102–144) | 76 (60–92) | 118 (115–122) | 71 (69–73) | 107 (103–112) | 60 (58–63) | 115 (111–118) | 68 (66–70) | 47 (45–49) | 0.31 (0.27–0.36) |
| 30–39 | 120 (96–151) | 77 (61–101) | 112 (110–115) | 71 (69–73) | 101 (98–105) | 60 (58–63) | 109 (106–112) | 68 (66–70) | 41 (40–43) | 0.38 (0.34–0.43) |
| 40–49 | 128 (100–164) | 81 (64–104) | 119 (116–122) | 74 (72–76) | 106 (104–109) | 63 (61–65) | 115 (112–118) | 70 (68–72) | 45 (43–46) | 0.41 (0.37–0.45) |
| 50–59 | 135 (100–176) | 83 (61–106) | 125 (122–128) | 76 (74–79) | 114 (111–117) | 66 (64–68) | 122 (119–125) | 73 (71–75) | 49 (47–50) | 0.41 (0.38–0.45) |
| 60–69 | 147 (109–196) | 85 (66–112) | 131 (128–134) | 77 (75–79) | 122 (119–125) | 68 (66–71) | 127 (125–131) | 74 (72–76) | 53 (51–56) | 0.49 (0.46–0.52) |
| 70–79 | 153 (116–196) | 84 (63–107) | 132 (128–135) | 72 (70–74) | 129 (125–133) | 66 (64–68) | 131 (127–134) | 70 (68–72) | 60 (58–63) | 0.53 (0.48–0.57) |
| ≥80 | 156 (113–217) | 86 (56–110) | 137 (130–143) | 75 (70–80) | 129 (123–135) | 68 (64–71) | 134 (127–140) | 72 (68–77) | 62 (57–66) | 0.52 (0.47–0.56) |
Units for all measurements except AASI are in mm Hg. AASI is an index with no units. Statistics are mean and 95% CI. AASI indicates ambulatory arterial stiffness index; ABPM, ambulatory blood pressure monitoring; BP, blood pressure.