Table 1.
Basic characteristics of participants across the tertiles of PDI, hPDI, and uPDI scores
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| Variable | PDI | hPDI | uPDI | |||||||||
| T1 (n=96) | T2 (n=76) | T3 (n=82) | P | T1 (n=85) | T2 (n=89) | T3 (n=80) | P | T1 (n=90) | T2 (n=83) | T3 (n=81) | P | |
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| Age (Y) | 30.94 ± 3.73 | 31.94 ± 4.88 | 31.12 ± 4.40 | 0.70 | 30.75 ± 3.69 | 31.26 ± 4.85 | 31.48 ± 4.29 | 0.53 | 30.98 ± 4.15 | 31.40 ± 4.05 | 31.12 ± 4.75 | 0.81 |
| Body mass index (kg/m2) | 26.68 ± 27.43 | 27.43 ± 4.35 | 26.82 ± 3.88 | 0.46 | 26.67 ± 4.02 | 26.38 ± 3.76 | 27.88 ± 4.47 | 0.04* | 27.49 ± 4.08 | 27.23 ± 4.28 | 26.07 ± 3.89 | 0.06 |
| Waist (cm) | 94.47 ± 10.11 | 95.01 ± 10.23 | 94.65 ± 10.88 | 0.94 | 94.66 ± 9.63 | 92.99 ± 9.52 | 96.61 ± 11.72 | 0.07 | 95.29 ± 10.92 | 95.11 ± 10.33 | 93.59 ± 9.78 | 0.51 |
| Marriage time (Y) | 5.66 ± 3.17 | 5.38 ± 2.71 | 5.43 ± 3.20 | 0.80 | 5.37 ± 2.40 | 5.33 ± 3.02 | 5.84 ± 3.62 | 0.49 | 5.86 ± 3.23 | 5.71 ± 2.96 | 4.89 ± 2.84 | 0.08 |
| Physical activity (Met/day) | 29.51 ± 2.15 | 29.11 ± 2.20 | 29.08 ± 1.99 | 0.45 | 29.35 ± 2.10 | 29.30 ± 1.97 | 29.09 ± 2.34 | 0.78 | 29.20 ± 2.14 | 29.20 ± 2.25 | 29.44 ± 1.96 | 0.79 |
| Smoking history Yes No | 35 (36.45) 61 (63.55) | 30 (39.47) 46 (60.53) | 29 (35.36) 53 (64.64) | 0.85 | 37 (43.53)48 (56.47) | 35 (39.33)54 (60.67) | 22 (27.50) 58 (62.50) | 0.08 | 33 (36.67) 57 (63.33) | 30 (36.15)53 (63.85) | 31 (38.30) 50 (61.70) | 0.95 |
| Alcohol history Yes No | 17 (17.70) 79 (82.30) | 21 (27.63) 55 (72.37) | 15 (18.30) 67 (81.70) | 0.22 | 19 (22.35) 66 (77.65) | 21 (23.60)68 (76.40) | 13 (16.25)67 (83.75) | 0.46 | 28 (31.11)62 (68.89) | 12 (14.46) 71 (85.54) | 13 (16.05) 68 (83.95) | 0.01* |
| Supplement use Yes No | 30 (31.25) 66 (68.75) | 25 (32.89)51 (67.11) | 25 (30.49) 57 (69.51) | 0.94 | 32 (37.65) 53 (62.35) | 23 (25.85) 66 (74.15) | 25 (31.25) 55 (68.75) | 0.24 | 37 (41.11) 53 (58.89) | 19 (22.90) 64 (77.10) | 24 (29.63) 57 (70.37) | 0.03* |
| Education statusLess than high schoolHigh school diplomaBachelor degree or higher | 16 (16.66) 28 (29.17) 52 (54.17) | 17 (22.37)23 (30.26) 36 (47.37) | 23 (28.05) 27 (32.93) 32 (39.02) | 0.29 | 14 (16.47) 25 (29.41) 46 (54.12) | 17 (19.10) 30 (33.70) 42 (47.20) | 25 (31.25) 23 (28.75) 32 (40.00) | 0.14 | 18 (20.00) 33 (36.66) 39 (43.34) | 18 (21.70) 23 (27.70) 42 (50.60) | 20 (24.70) 22 (27.16) 39 (48.14) | 0.63 |
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Values are mean (SD) for continuous and percentage for categorical variables. Using one-way ANOVA for continuous and Chi-square test for categorical variables. PDI; Plant-base diet index, hPDI; Healthful plant-base diet index, uPDI; Unhealthful plant-base diet index, T1; First tertile, T2; Second tertile, T3; Third tertile, P; P value, and * ; P˂0.05 was considered as significant (more explanation are reported in result section).