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. 2021 Jan 17;28(10):1035–1051. doi: 10.5551/jat.60376

Table 3. Changes in anthropometric variables, blood pressure and circulating metabolic parameters in the Partial Japan Diet and Japan Diet groups.

Partial Japan Diet

( n = 49)

Japan Diet

( n = 49)

Between-group comparisons at 3 and 6 months (Japan Diet - Partial Japan Diet)
Difference (95% CI) § p effect size
Body weight (kg) Baseline 64.6 (12.9) 64.5 (13.4)
3-month 63.3 (12.5) 63.5 (13.6) 0.3 (-0.4, 1.0) 0.44 0.16
6-month 63.0 (12.9) 63.3 (13.5) 0.4 (-0.6, 1.3) 0.41 0.17
Body Mass Index (kg/m 2 ) Baseline 23.9 (3.3) 24.4 (3.7)
3-month 23.5 (3.2) 24.0 (3.8) 0.1 (-0.2, 0.4) 0.50 0.14
6-month 23.3 (3.3) 24.0 (3.7) 0.1 (-0.2, 0.5) 0.43 0.16
Waist circumference (cm) Baseline 86.1 (9.7) 88.8 (9.8)
3-month 85.6 (9.2) 87.2 (9.8) -1.0 (-2.1, 0.0) 0.053 0.41
6-month 84.8 (9.3) 86.3 (10.0) -1.2 (-2.5, 0.2) 0.091 0.35
Systolic blood pressure (mmHg) Baseline 127 (16) 127 (18)
3-month 124 (14) 123 (16) -1 (-5, 4) 0.82 0.05
6-month 123 (15) 122 (14) 0 (-5, 5) 0.94 0.02
Diastolic blood pressure (mmHg) Baseline 79 (12) 79 (13)
3-month 78 (11) 78 (12) 1 (-2, 4) 0.56 0.12
6-month 76 (12) 76 (11) 0 (-3, 3) 0.98 0.00
Total cholesterol (mg/dL) Baseline 224 (38) 213 (29)
3-month 219 (38) 204 (25) -4 (-14, 5) 0.38 0.18
6-month 223 (36) 202 (27) -10 (-19, -1) 0.033 0.44
LDL-cholesterol (mg/dL) Baseline 128 (33) 123 (24)
3-month 124 (30) 116 (20) -3 (-11, 5) 0.45 0.15
6-month 129 (32) 115 (22) -9 (-17, 0) 0.043 0.41
MDA-LDL (U/L) Baseline 94 (71, 126) 88 (74, 107)
3-month 86 (71, 107) 86 (69, 105) 4.3 (-7.0, 15.7) 0.76 0.15
6-month 91 (67, 122) 79 (69, 98) -3.7 (-15.7, 8.3) 0.29 0.12
HDL-cholesterol (mg/dL) Baseline 63 (18) 61 (17)
3-month 63 (21) 60 (15) -2 (-4, 1) 0.26 0.23
6-month 64 (20) 60 (16) -2 (-4, 1) 0.25 0.23
Triglyceride (mg/dL) Baseline 90 (63, 173) 103 (77, 155)
3-month 91 (61, 152) 92 (68, 127) -9 (-30, 13) 0.21 0.16
6-month 87 (64, 153) 86 (60, 131) -10 (-33, 13) 0.023 0.17
Glucose (mg/dL) Baseline 93 (88, 104) 95 (90, 101)
3-month 92 (89, 101) 95 (88, 101) 2 (-1, 5) 0.20 0.30
6-month 93 (87, 100) 94 (88, 101) 0 (-3, 4) 0.98 0.03
Insulin (µU/mL) Baseline 4.7 (3.5, 7.8) 6.2 (3.4, 10.7)
3-month 4.6 (3.1, 8.3) 5.4 (3.1, 9.7) -0.9 (-2.1, 0.3) 0.29 0.29
6-month 4.5 (3.2, 7.3) 5.1 (3.2, 7.7) -1.2 (-2.3, 0.0) 0.033 0.40
HbA1c (%) Baseline 5.5 (5.3, 5.8) 5.5 (5.4, 5.9)
3-month 5.6 (5.3, 5.8) 5.5 (5.4, 5.8) -0.01 (-0.10, 0.08) 0.96 0.05
6-month 5.6 (5.3, 5.9) 5.6 (5.3, 5.8) -0.04 (-0.14, 0.05) 0.23 0.19

MDA-LDL, Malondialdehyde modified-low density cholesterol.

P values between-group comparisons were analyzed by unpaired t test or Mann–Whitney U test.

Values are expressed as mean (SD).

Values are expressed as median (25 percentile, 75 percentile).

§ Values are expressed as means (95% CI)

There were missing data for 3 of PJD and 2 of JD participants at 3 month, and 6 participants each in both group at 6 months.