Research Article

Self-Monitoring Home Blood Pressure in Community-Dwelling Older People: Age Differences in White-Coat and Masked Phenomena and Related Factors—The SONIC Study

Table 4

Standardized odds ratios for both white-coat phenomenon and masked phenomenon in antihypertensive participants.

White-coat phenomenonMasked phenomenon
Model 1
OR (95% CI)
Model 2
OR (95% CI)
Model 1
OR (95% CI)
Model 2
OR (95% CI)

Sex1.518 (0.654–2.415)1.787 (0.637–5.015)0.669 (0.406–1.103)0.624 (0.225–1.727)
Age group0.751 (0.493–1.144)0.382 (0.178–0.817)1.431 (0.910–2.251)1.470 (0.746–2.898)
BMI0.962 (0.892–1.038)0.962 (0.846–1.094)0.965 (0.889–1.048)0.956 (0.852–1.072)
MoCA-J1.026 (0.970–1.086)1.032 (0.942–1.130)0.962 (0.908–1.019)0.953 (0.872–1.041)
HDL-C mg/dL1.004 (0.989–1.020)0.991 (0.965–1.018)1.001 (0.984–1.017)1.005 (0.979–1.031)
LDL-C mg/dL1.008 (1.000–1.017)1.007 (0.994–1.020)0.997 (0.988–1.006)1.003 (0.990–1.015)
HbA1c0.807 (0.568–1.147)0.770 (0.348–1.706)1.252 (0.881–1.780)0.838 (0.405–1.734)
Creatinine mg/dL0.441 (0.178–1.093)0.214 (0.043–1.062)1.387 (0.680–2.831)1.387 (0.463–4.156)
Mean IMT0.848 (0.133–5.426)3.028 (0.142–64.610)0.872 (0.119–6.376)0.329 (0.017–6.201)
DM0.782 (0.409–1.495)1.679 (0.374–7.535)1.516 (0.786–2.924)2.366 (0.591–9.477)
Dyslipidemia0.778 (0.489–1.23990.606 (0.277–1.326)1.033 (0.629–1.697)1.214 (0.581–2.537)
CCB0.665 (0.385–1.147)0.297 (0.116–0.762)1.152 (0.637–2.083)1.031 (0.441–2.411)
On-site_SBP1.138 (1.105–1.172)1.181 (1.128–1.236)0.904 (0.880–0.928)0.905 (0.875–0.936)
On-site_DBP1.091 (1.061–1.121)1.033 (0.987–1.081)0.906 (0.878–0.935)0.929 (0.886–0.973)
Past smoking1.29980.800–2.109)1.167 (0.453–3.007)0.916 (0.547–1.535)1.297 (0.511–3.294)
Current heavy drinking0.500 (0.127–1.974)1.155 (0.191–6.970)3.434 (0.944–12.489)4.832 (0.900–25.956)

BMI = body mass index; MoCA-J = Japanese version of Montreal Cognitive Assessment; HDL-C = high-density lipoprotein cholesterol; LDL-C = low-density lipoprotein cholesterol; HbA1c = hemoglobin A1c; Mean IMT = mean intima-media thickness; DM = diabetes mellitus; CCB = calcium channel blockers; SBP = systolic blood pressure; DBP = diastolic blood pressure; HR = heart rate; OR = odds ratio; CI = confidence interval. Statistical analysis: logistic regression. Model 1: no adjustment. Model 2: adjusted for sex, age group, BMI, MoCA-J, HDL-C, LDL-C, HbA1c, creatinine, mean IMT, HT, DM, dyslipidemia, CCB, On-site_SBP, On-site_DBP, past smoking, and current heavy drinking.