Table 2 Non-Hypertensive: diagnostic performance for hypertension defined by mean daytime ABPM
Ethnicity | Sensitivity (95% CI) | Specificity (95% CI) | LR + ve (95% CI) | LR -ve (95% CI) |
|---|---|---|---|---|
a) ABPM v Clinic23 on three occasions (thresholds: ABPM 135/85 mmHg, Clinic23 140/90 mmHg) | ||||
All sample (n = 211) | 39.5% (29.2–50.7%) | 90.4% (83.8–94.9%) | 4.12 (2.26–7.49) | 0.67 (0.56–0.80) |
WB (n = 98) | 45.0% (29.3–61.5%) | 86.2% (74.6–93.9%) | 3.26 (1.57–6.76) | 0.64 (0.47–0.86) |
SA (n = 55) | 37.5% (15.2–64.6%) | 97.4% (86.5–99.9%) | 14.63 (1.91–111.97) | 0.64 (0.44–0.94) |
AC (n = 58) | 33.3% (17.3–52.8%) | 89.3% (71.8–97.7%) | 3.11 (0.95–10.15) | 0.75 (0.56–0.99) |
b) ABPM v Clinic26 on three occasions (thresholds: ABPM 135/85 mmHg, Clinic26 135/85 mmHg) | ||||
All sample (n = 211) | 58.1% (47.0–68.7%) | 84.0% (76.4–89.9%) | 3.63 (2.34–5.64) | 0.50 (0.38–0.65) |
WB (n = 98) | 65.0% (48.3–79.4%) | 81.0% (68.6–90.1%) | 3.43 (1.92–6.11) | 0.43 (0.28–0.67) |
SA (n = 55) | 56.3% (29.9–80.2%) | 94.9% (82.7–99.4%) | 10.97 (2.66–45.26) | 0.46 (0.26–0.81) |
AC (n = 58) | 50.0% (31.3–68.7%) | 75.0% (55.1–89.3%) | 2.00 (0.96–4.17) | 0.67 (0.44–1.01) |
c) ABPM v ClinicD1R1 (thresholds: ABPM 135/85 mmHg, ClinicD1R1 140/90 mmHg) | ||||
All sample (n = 211) | 26.7% (17.8–37.4%) | 90.4% (83.8–94.9%) | 2.79 (1.47–5.29) | 0.81 (0.70–0.93) |
WB (n = 98) | 35.0% (20.6–51.7%) | 81.0% (68.6–90.1%) | 1.85 (0.94–3.64) | 0.80 (0.62–1.04) |
SA (n = 55) | 12.5% (1.6–38.3%) | 97.4% (86.5–99.9%) | 4.88 (0.47–50.05) | 0.90 (0.74–1.09) |
AC (n = 58) | 23.3% (9.9–42.3%) | 100% (87.7–100%) | . (. - .) | 0.77 (0.63–0.93) |
d) ABPM v Home-monitoring for 1 week (thresholds: ABPM 135/85 mmHg, Home 135/85 mmHg) | ||||
All sample (n = 211) | 72.1% (61.4–81.2%) | 76.0% (67.5–83.2%) | 3.00 (2.14–4.21) | 0.37 (0.26–0.52) |
WB (n = 98) | 67.5% (50.9–81.4%) | 79.3% (66.6–88.8%) | 3.26 (1.89–5.64) | 0.41 (0.26–0.65) |
SA (n = 55) | 87.5% (61.7–98.4%) | 79.5% (63.5–90.7%) | 4.27 (2.24–8.13) | 0.16 (0.04–0.58) |
AC (n = 58) | 70.0% (50.6–85.3%) | 64.3% (44.1–81.4%) | 1.96 (1.13–3.40) | 0.47 (0.25–0.86) |