Dietary salt reduction in rural patients with albuminurea using family and community support: the Mima study

Table 1 Baseline characteristics

Variables	Intervention group (n = 14)	Control group (n = 22)	P value^a
Sex (male/female)	11/3	9/13	0.041
Age (y)	69.0 ± 11.0	75.1 ± 7.2	0.111
Body Mass Index (kg/m²)	24.1 ± 3.1	24.9 ± 3.8	0.417
Systolic blood pressure (mmHg)	145.1 ± 13.9	134.9 ± 13.1	0.041
Diastolic blood pressure (mmHg)	67.1 ± 8.3	66.4 ± 12.2	0.733
Hb_A1C (%)	6.7 ± 1.8	5.1 ± 0.4	<0.001
BUN (mg/dL)	15.2 ± 3.3	18.9 ± 6.6	0.149
Cr (mg/dL)	0.8 ± 0.2	1.0 ± 0.4	0.745
ACR (mg/gCr)	706.1 ± 1082.1	212.5 ± 322.5	0.427
eGFR^b (mL/min/1.73 m²)	71.6 ± 23.4	59.6 ± 23.3	0.173
Stage of chronic kidney disease
Stage 1: eGFR^b >= 90	2 (14.3)	3 (13.6)
Stage 2: 60~89	7 (50.0)	10 (45.5)
Stage 3: 30~59	5 (35.7)	5 (22.7)
Stage 4: 15~29	0 (0.0)	4 (18.2)
Stage 5: <15	0 (0.0)	0 (0.0)	0.376
Antihypertensive drugs
Any antihypertensive drugs	11 (78.6)	19 (86.4)	0.541
Rennin-angiotensin system blocking drugs	11 (78.6)	15 (68.2)	0.497
Dietary salt intake^c (g/day)	12.0 ± 3.5	-	-

Abbreviation: Hb_A1C, glycosylated hemoglobin; BUN, blood urea nitrogen; Cr, serum creatinine; ACR, urine albumin-creatinine ratio; eGFR, estimated glomerular filtration rate
Data are mean ± SD or n (%).
^aP value were calculated by Mann-Whitney U-test and Chi-square test if categorical variables were used.
^bCalculated using eGFR equation for Japanese, eGFR = 194 × Cr^-1.094 × Age^-0.287 (× 0.739, if female) [7].
^cOnly subjects in intervention group were examined by dieticians using Food Frequency Questionnaire.

ISSN: 1447-056X