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. 2021 Apr 23;23(4):e19187. doi: 10.2196/19187

Table 6.

Validation results.

Protocol requirements Range, n Pass or fail

<5 mmHg <10 mmHg <15 mmHg
Part 1 (N=186a)




Required (2 of 3) At least 137 At least 163 At least 180

Achieved differences





Systolic blood pressurea 120 147 169 Fail


Diastolic blood pressurea 159 180 186 Pass

Required (all) At least 122 At least 152 At least 175

Achieved differences





Systolic blood pressure 120 147 169


Diastolic blood pressure 159 180 186
Part 2 (N=62a)




Required At least 45

Fail

Achieved





Systolic blood pressure 43 b


Diastolic blood pressure 10

Allowed At most 6

Fail

Achieved





Systolic blood pressure 54


Diastolic blood pressure 5
Grade 3 (final result)—must pass all of parts 1 and 2


Fail

aThese reflect the number of readings and participants included in the study when recruitment was stopped.

bNot applicable.