General characteristics of participants according to tertiles of healthy plant-based diet index (hPDI) and total PDI*
| Variable | hPDI score | Total PDI score | ||||||
| Tertile 1 | Tertile 2 | Tertile 3 | P value† | Tertile 1 | Tertile 2 | Tertile 3 | P value† | |
| Participants (n) | 47 | 45 | 49 | 47 | 42 | 52 | ||
| Inpatient (%) | 30 (63.8) | 15 (33.3) | 8 (16.3) | <0.001 | 29 (61.7) | 13 (31.0) | 11 (21.2) | <0.001 |
| Age (years) | 48.97 (13.98) | 45.18 (17.89) | 44.55 (15.66) | 0.34 | 48.23 (15) | 46.29 (17.78) | 44.38 (15.15) | 0.35 |
| Gender (female) | 24 (51%) | 23 (51%) | 20 (41%) | 0.56 | 24 (51%) | 22 (52%) | 20 (38%) | 0.31 |
| Weight (kg) | 77.89 (11.87) | 77.62 (14.63) | 76.75 (10.77) | 0.84 | 78.10 (12.07) | 77.21 (13.91) | 76.94 (11.57) | 0.92 |
| BMI (kg/m2) | 27.53 (3.97) | 26.98 (4.55) | 26.37 (2.84) | 0.27 | 27.53 (4.04) | 26.98 (4.31) | 26.41 (3.17) | 0.39 |
| WCC (106/μL) | 6.26 (1.95) | 5.95 (2) | 6.42 (2.45) | 0.57 | 6.06 (1.94) | 5.85 (1.65) | 6.69 (2.62) | 0.23 |
| Lymphocytes (%) | 33.50 (10.65) | 30.32 (7.91) | 32.09 (7.93) | 0.40 | 33 (10.92) | 31.03 (7.95) | 31.85 (7.75) | 0.68 |
| Neutrophils (%) | 55.57 (10.8) | 57.35 (10.24) | 57.06 (8.63) | 0.71 | 54.8 (10.98) | 57.9 (10.14) | 57.26 (8.4) | 0.52 |
| IL-6 (pg/mL) | 2 (2–8.02) | 2 (2–3.9) | 3.71 (2–8.70) | 0.72 | 2 (2–8.02) | 2.46 (2–7.35) | 2.27 (2–8.33) | 0.71 |
| NLR | 2.04 (1.41) | 2.27 (1.86) | 2.06 (1.35) | 0.82 | 2.05 (1.42) | 2.25 (1.9) | 2.07 (1.32) | 0.86 |
| CRP (U/L) | 5.34 (7.1) | 5.88 (6.53) | 5.19 (6.74) | 0.89 | 5.32 (7.11) | 6.12 (6.73) | 5.07 (6.55) | 0.76 |
*Data were presented as mean (SD) and median (IQR) except for gender and inpatient rate for which No. (%) were given.
†By the use of linear regression with bootstrapping and χ2 test for continuous and categorical variables, respectively.
BMI, body mass index; CRP, C reactive protein; NLR, neutrophil to lymphocyte ratio; WCC, white cell count.