TABLE 4.

Estimates of lability of diastolic blood pressure by type of hypertension

Parameter		Masked uncontrolled hypertension, n = 16 (43.2%)	Adequately controlled hypertension, n = 21 (56.8%)	P-value
Induction period
Probability of out-of-range ± 20% referenced to
	Home BP	0.34 (0.24, 0.45)	0.39 (0.29, 0.48)	0.547
	Clinic BP	0.43 (0.32, 0.53)	0.35 (0.26, 0.44)	0.283
	Pre-induction BP	0.40 (0.28, 0.52)	0.44 (0.33, 0.54)	0.618
SD, mmHg		14.76 (12.28, 17.24)	12.05 (9.89, 14.21)	0.103
ln(VAR), ln(mmHg2)		5.27 (4.88, 5.66)	4.83 (4.49, 5.17)	0.088
Absolute change
	ARV, mmHg	11.54 (9.25, 13.82)	9.83 (7.83, 11.83)	0.263
	TARV, mmHg min–1	11.54 (9.25, 13.82)	9.83 (7.83, 11.83)	0.263
Intraoperative period
Probability of out-of-range ± 20% referenced to
	Home BP	0.32 (0.21, 0.43)	0.26 (0.17, 0.35)	0.368
	Clinic BP	0.31 (0.20, 0.42)	0.35 (0.25, 0.44)	0.613
	Pre-induction BP	0.37 (0.23, 0.50)	0.37 (0.25, 0.49)	0.954
SD, mmHg		10.27 (8.80, 11.73)	8.58 (7.36, 9.85)	0.086
ln(VAR), ln(mmHg2)		4.59 (4.26, 4.91)	4.18 (3.90, 4.47)	0.070
Absolute change
	ARV, mmHg	7.84 (6.54, 9.13)	6.66 (5.52, 7.79)	0.174
	TARV, mmHg min–1	1.49 (1.23, 1.74)	1.28 (1.06, 1.49)	0.219
Postoperative period
Probability of out-of-range ± 20% referenced to
	Home BP	0.24 (0.10, 0.37)	0.34 (0.18, 0.50)	0.338
	Clinic BP	0.21 (0.08, 0.34)	0.31 (0.17, 0.45)	0.324
	Pre-induction BP	0.31 (0.13, 0.49)	0.48 (0.33, 0.62)	0.174
SD, mmHg		6.68 (4.58, 8.78)	4.53 (2.60, 6.46)	0.134
ln(VAR), ln(mmHg2)		3.32 (2.66, 3.28)	2.67 (2.07, 3.28)	0.150
Absolute change
	ARV, mmHg	4.08 (2.56, 5.61)	4.06 (2.71, 5.41)	0.982
	TARV, mmHg min–1	0.72 (0.48, 1.00)	0.71 (0.46, 0.95)	0.917

Values reported as mean (95% CI); P-value from Wald test of a respective regression model. BP- blood pressure; SD- standard deviation; ln(VAR)- natural logarithm of variance; ARV- absolute real variability; TARV- time-averaged absolute real variability