Table 2.

Prevalence of masked hypertension using different definitions and over two time periods

	Baseline visit				Repeat visit at 4 weeks
	CH (n)	UCH (n)	MUCH (%)	95% CI	CH (n)	UCH (n)	MUCH (%)	95% CI
Daytime ABPM	192	70	26.7	21.3–32.1%	177	69	28.0	22.4–33.7%
24-Hour ABPM	176	86	32.8	27.1–38.5%	154	92	37.4	31.3–43.5%
Daytime and nighttime ABPM	115	147	56.1	50.1–62.2%	106	140	56.9	50.7–63.1%
Home BP	140	122	46.6	40.5–52.6%	132	114	46.3	40.1–52.6%

MUCH is calculated as UCH×100%/(CH+UCH).