Blood pressure change does not associate with Center of Pressure movement after postural transition in geriatric outpatients

Table 1 Characteristics of geriatric outpatients (n = 75) and a subgroup of outpatients who underwent continuous blood pressure measurements (n = 38)

	All n = 75	Subgroup n = 38
Socio-demographics
Age, years	80.4 (7.4)	79.3 (7.7)
Males; n (%)	33 (44.0)	19 (50.0)
Independent living; n (%)	42 (56.0)	18 (47.4)
Current smoking; n (%)	14 (18.7)	6 (15.8)
Health characteristics
BMI, kg/m²	25.8 (5.2)	26.5 (5.6)
Hypertension; n (%)	29 (39.7)	16 (42.1)
Diabetes Mellitus; n (%)	20 (27.4)	11 (28.9)
Parkinson’s disease; n (%)	1 (1.4)	0 (0)
Multimorbidity, n (%)^a	28 (38.4)	16 (42.1)
Number of medication; median [IQR]	5 [2-8]	5 [3-7]
MMSE, points; median [IQR]	28 [25-29]	28 [25-29]
Physical functioning
Handgrip strength, kg	27.1 (7.3)	28.4 (7.3)
Gait speed, m/s	0.81 (0.31)	0.78 (0.31)
SPPB, points; median [IQR]	8 [6-10]	8 [6-11]
Self-reported
Fall incident previous 12 months; n (%)	46 (61.3)	24 (63.2)
Impaired standing balance; n (%)	32 (43.3)	13 (35.1)
Use of walking aid; n (%)	41 (55.4)	20 (52.6)
Supine blood pressure ^b
SBP, mmHg	135 (22.1)	140 (23.0)
DBP, mmHg	73 (9.8)	75 (10.2)
Blood pressure change after postural change
SBP change, mmHg ^c
After 1 min	0.64 (13.89)	−1.51 (14.9)
After 3 min	−3.97 (14.5) ^f	−4.40 (15.7)
DBP change, mmHg ^c
After 1 min	−4.36 (7.21)	−3.46 (7.18)
After 3 min	−6.07 (8.98) ^f	−6.14 (10.6)
Orthostatic hypotension ^d
OH_intermittent; n (%)	8 (11.0)	3 (8.1)
OH_{continuous_0-180}; n (%)	NA	22 (57.9)
iOH ^e and OH 15-180 s	NA	14 (63.6) ^g
Only iOH ^e	NA	3 (13.6) ^g

All parameters are presented as mean (standard deviation) unless indicated otherwise
BMI Body Mass Index, IQR interquartile range, MMSE Mini Mental State Examination, SPPB Short Physical Performance Battery, BP blood pressure, SBP systolic blood pressure, DBP diastolic blood pressure, OH orthostatic hypotension, iOH Initial orthostatic hypotension, NA not applicable
^aTwo or more chronic diseases, including chronic obstructive pulmonary diseases, diabetes mellitus, hypertension, malignancy, myocardial infarction, Parkinson’s disease, (osteo)arthritis
^bMeasured after at least 5 min in supine position
^cSupine BP minus BP at 1 or 3 min after postural change, intermittently measured
^dA decrease in SBP of ≥20 mmHg or decrease in DBP of ≥10 mmHg at 1 or at 3 min after postural change, intermittently measured
^eTransient decrease in BP within 15 s after standing, a > 40 mmHg decrease in SBP and/or a > 20 mmHg decrease in DBP
^fData available of N = 69
^gFrom patients with OH_{continuous_0-180}, (N = 22)

ISSN: 1471-2318