. 2012 Mar 5;14(4):222–227. doi: 10.1111/j.1751-7176.2012.00599.x

Table II.

Comparison of Mean±SD (mm Hg) BP Measures of Site Personnel and Trained Observer and Concordance

	Site Personnel	Trained Observer	Bias (Average Difference)		Concordance/Reliability						ICC
					Absolute Differences (mm Hg)
					≥ 5	≥ 10	≥ 15	≥ 20	≥ 25	≥ 30
SBP	129 (125–133)	125 (122–128)	Unadjusted	3.86 (1.67–6.05) P=.001	71%	41%	24%	16%	5%	1%	0.87 (0.82–0.91)
SBP	129 (125–133)	125 (122–128)	Adjusted^a	5.66 (3.09–8.23) P<.001	71%	41%	24%	16%	5%	1%	0.87 (0.82–0.91)
DBP	74 (72–76)	76 (75–78)	Unadjusted	−2.27 (−3.73 to −0.81) P=.002	54%	21%	8%	4%	0%	0%	0.78 (0.70–0.84)
DBP	74 (72–76)	76 (75–78)	Adjusted^a	−2.96 (−5.05 to −0.87) P=.005	54%	21%	8%	4%	0%	0%	0.78 (0.70–0.84)

Abbreviations: DBP, diastolic blood pressure; ICC, intraclass correlation coefficient; SBP, systolic blood pressure. ^aAdjusted for patient age, weight, sex, and ethnicity.