Table 2. Differences and correlations between MS and electronic devices.
| Number | BP | MS-AD | MS-OD | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Difference | CC | CCC | Difference | CC | CCC | ||||||
| Mean ± SD | r | p value | ρ (95% CI) | Mean ± SD | r | p value | ρ (95% CI) | ||||
| Overall | 104 | SBP | 0.88±3.36 | 0.94 | <0.001 | 0.93 (0.90–0.95) | 0.43±5.83 | 0.81 | <0.001 | 0.81 (0.73–0.87) | |
| DBP | 0.63±3.95 | 0.90 | <0.001 | 0.90 (0.85–0.93) | 4.57±6.89 | 0.67 | <0.001 | 0.57 (0.44–0.67) | |||
| Sex | |||||||||||
| Boy | 53 | SBP | 1.02±3.02 | 0.96 | <0.001 | 0.95 (0.91–0.97) | 1.28±6.46 | 0.79 | <0.001 | 0.79 (0.66–0.87) | |
| DBP | 0.62±3.82 | 0.91 | <0.001 | 0.91 (0.85–0.95) | 4.81±6.53 | 0.71 | <0.001 | 0.60 (0.43–0.73) | |||
| Girl | 51 | SBP | 0.73±3.71 | 0.91 | <0.001 | 0.90 (0.83–0.94) | −0.46±5.01 | 0.83 | <0.001 | 0.83 (0.71–0.90) | |
| DBP | 0.64±4.11 | 0.89 | <0.001 | 0.89 (0.81–0.93) | 4.31±7.30 | 0.62 | <0.001 | 0.53 (0.33–0.58) | |||
| Age group | |||||||||||
| Group 1 | 36 | SBP | 1.47±4.03 | 0.91 | <0.001 | 0.90 (0.81–0.95) | 2.6±6.51 | 0.75 | <0.001 | 0.72 (0.51–0.84) | |
| DBP | 1.53±4.55 | 0.83 | <0.001 | 0.81 (0.66–0.90) | 3.76±5.53 | 0.74 | <0.001 | 0.65 (0.44–0.79) | |||
| Group 2 | 68 | SBP | 0.56±2.93 | 0.95 | <0.001 | 0.95 (0.92–0.97) | −0.72±5.13 | 0.85 | <0.001 | 0.85 (0.76–0.90) | |
| DBP | 0.15±3.53 | 0.93 | <0.001 | 0.93 (0.89–0.96) | 4.99±7.51 | 0.64 | <0.001 | 0.54 (0.37–0.67) | |||
Group 1: 10–12 years old; Group 2: 13–18 years old.
AD = auscultatory device (Greenlight 300TM); BP = blood pressure; CC = Pearson’s correlation coefficient; CCC = Lin’s concordance correlation coefficient; CI = confidence interval; DBP = diastolic blood pressure; MS = mercury sphygmomanometer; OD = oscillometric device (Omron HEM-907); SBP = systolic blood pressure; SD = standard deviation.