Table 3.

Repeatability of Oscillometric Device for Each BP Level

	Low BP Level r (95% CI)	Medium BP Level r (95% CI)	High BP Level r (95% CI)	Total BP Level r (95% CI)
1 and 2 measurements of SBP with wrist device	0.92 (0.89–0.93)	0.90 (0.87–0.92)	0.95 (0.93–0.96)	0.97 (0.97–0.98)
1 and 2 measurements of SBP with upper arm device	0.93 (0.92–0.95)	0.92 (0.90–0.94)	0.91 (0.87–0.94)	0.98 (0.97–0.98)
1 and 2 measurements of DBP with wrist device	0.94 (0.93–0.96)	0.87 (0.83–0.90)	0.96 (0.94–0.97)	0.95 (0.94–0.96)
1 and 2 measurements of DBP with upper arm device	0.93 (0.91–0.95)	0.96 (0.95–0.97)	0.95 (0.93–0.96)	0.96 (0.95–0.97)

Abbreviations: BP, blood pressure; CI, confidence interval; DBP, diastolic blood pressure; SBP, systolic blood pressure; r, intraclass correlation coefficient (Cronbach's α).