Effectiveness of a Multidisciplinary Approach Intervention to Improve Blood Pressure Control Among Elderly Hypertensive Patients in Rural Thailand: A Quasi-Experimental Study

Figures & data

Table 1 Baseline Comparison of Characteristics of the Participants (n = 200)

Characteristics	All Participants (n = 200)	Intervention Group (n = 100)	Control Group (n = 100)	χ^2 or t Value	P-value
Demographic characteristics
Age, mean (SD)	67.28 (5.92)	67.49 (6.15)	66.88 (5.70)	0.73	0.47
Gender, n (%)
Female	145 (72.50)	74	71	0.23	0.64
Male	55 (27.50)	26	29
Marital status, n (%)
No partner	48 (24.00)	23	25	0.11	0.74
Married	152 (76.00)	77	75
Education level, n (%)
Lower than high school	168 (84.00)	81	87	1.34	0.25
High school and higher	32 (16.00)	19	13
Occupation, n (%)
Agriculture	132 (66)	62	70	1.43	0.23
Another field or not working	68 (34)	38	30
Type of caretaker, n (%)
Children	67 (33.50)	33	34	0.42	0.98
Partner	96 (48.00)	48	48
Other Daughter or son in law and relatives	37 (18.50)	19	18
Clinical characteristics
Comorbidity, n (%)
HT and DM	121 (60.50)	58	63	0.52	0.47
HT and heart or kidney disease	79 (39.50)	42	37
BMI, mean (SD)	24.08 (3.09)	23.89 (3.06)	24.27 (3.11)	0.88	0.38
Systolic blood pressure, mean (SD)	155.28 (10.49)	154.51 (11.15)	156.05 (9.77)	1.04	0.30
Diastolic blood pressure, mean (SD)	90.78 (5.85)	90.47 (6.13)	91.09 (5.57)	0.75	0.46
Laboratory testing
Estimated glomerular filtration rate (eGFR)
eGFR (mL/min/1.73 m^3)	91.77 (22.31)	90.66 (17.97)	92.87 (25.98)	0.70	0.49
Medication characteristics
Number of medications/days, n (%)
1–2	189 (94.50)	96	93	0.87	0.35
>2	11 (5.50)	4	7
Number of years since diagnosis, n (%)
1–10	158 (79.00)	76	82	1.09	0.30
>10	42 (21.00)	24	18
Medical adherence percentage, mean (SD)	53.11 (17.17)	53.63 (17.50)	52.60 (16.92)	0.42	0.67

Abbreviations: SD, standard deviation; HT, hypertension; DM, diabetes mellitus.

Table 2 Group Differences in Control and Multidisciplinary Approach Intervention Groups

Determinant	Baseline		One Month Post Intervention		Three Months Post Intervention		F Statistics	P-value	Effect Size
	Intervention	Control	Intervention	Control	Intervention	Control
Systolic BP	154.51 (11.16)	156.05 (9.78)	143.29 (12.58)	145.62 (9.81)	141.27 (13.59)	143.56 (14.59)	9.912	<0.001	0.091
Diastolic BP	90.47 (6.13)	91.09 (5.57)	82.59 (8.01)	83.77 (7.47)	73.22 (8.97)	79.69	7.120	0.001	0.067
Medical adherence	53.63 (17.57)	52.60 (16.92)	71.71 (18.49)	70.65 (20.34)	72.40 (16.06)	65.38 (16.49)	11.395	<0.001	0.103

Abbreviation: BP, blood pressure.

Table 3 Estimated Glomerular Filtration Rate (eGFR) Difference in Control and Multidisciplinary Approach Intervention Groups

Laboratory Test	Baseline		Three Months After the Intervention		F Statistics	P-value	Effect Size
	Intervention	Control	Intervention	Control
eGFR (mL/min/1.73m^3)	90.66 (17.97)	92.87 (25.98)	96.75 (13.91)	86.11 (20.84)	17.825	<0.001	0.083