Table 1.
Characteristics of the study population based on SII groups in NHANES 2017–2020 (n = 4,950).
| SII groups | Q1 (≤314.9) | Q2 (314.9–446.9) | Q3 (446.9–608.7) | Q4 (>608.7) | p-value |
|---|---|---|---|---|---|
| N | 1,147 | 1,148 | 1,147 | 1,148 | |
| Age (years) | 48.57 ± 16.40 | 47.65 ± 17.06 | 47.84 ± 17.05 | 48.85 ± 17.35 | 0.266 |
| TC (mg/dl) | 186.75 ± 41.37 | 188.35 ± 41.80 | 186.34 ± 39.58 | 186.04 ± 40.99 | 0.536 |
| Energy (kcal) | 2233.65 ± 1037.03 | 2204.29 ± 1042.23 | 2187.09 ± 987.35 | 2218.29 ± 1033.69 | 0.743 |
| Total sugars (g) | 104.76 ± 75.54 | 103.06 ± 73.06 | 107.74 ± 74.22 | 110.99 ± 80.91 | 0.073 |
| Total fat (g) | 90.61 ± 50.54 | 90.81 ± 52.14 | 88.98 ± 47.20 | 90.90 ± 50.42 | 0.784 |
| Total moisture (g) | 3049.70 ± 1622.86 | 2993.15 ± 1563.16 | 2990.14 ± 1633.23 | 3044.45 ± 1545.70 | 0.718 |
| Gender | <0.001 | ||||
| Male | 669 (58.33%) | 601 (52.35%) | 523 (45.60%) | 525 (45.73%) | |
| Female | 478 (41.67%) | 547 (47.65%) | 624 (54.40%) | 623 (54.27%) | |
| BMI | <0.001 | ||||
| <25 (kg/m2) | 335 (29.21%) | 290 (25.26%) | 255 (22.23%) | 248 (21.60%) | |
| ≥25 (kg/m2) | 812 (70.79%) | 858 (74.74%) | 892 (77.77%) | 900 (78.40%) | |
| Race | <0.001 | ||||
| Mexican American | 132 (11.51%) | 161 (14.02%) | 142 (12.38%) | 123 (10.71%) | |
| Other Hispanic | 91 (7.93%) | 121 (10.54%) | 105 (9.15%) | 132 (11.50%) | |
| Non-Hispanic White | 299 (26.07%) | 448 (39.02%) | 491 (42.81%) | 533 (46.43%) | |
| Non-Hispanic Black | 436 (38.01%) | 267 (23.26%) | 250 (21.80%) | 196 (17.07%) | |
| Other race | 189 (16.48%) | 151 (13.15%) | 159 (13.86%) | 164 (14.29%) | |
| Educational level | 0.727 | ||||
| Below high school | 137 (11.94%) | 158 (13.76%) | 156 (13.60%) | 158 (13.76%) | |
| High school | 265 (23.10%) | 259 (22.56%) | 256 (22.32%) | 276 (24.04%) | |
| Above | 745 (64.95%) | 731 (63.68%) | 735 (64.08%) | 714 (62.20%) | |
| PIR | 0.052 | ||||
| <1.8 | 302 (26.33%) | 268 (23.34%) | 274 (23.89%) | 297 (25.87%) | |
| 1.8–2.3 | 430 (37.49%) | 429 (37.37%) | 433 (37.75%) | 470 (40.94%) | |
| >2.3 | 415 (36.18%) | 451 (39.29%) | 440 (38.36%) | 381 (33.19%) | |
| Alcohol | 0.369 | ||||
| ≤2 drink/day | 946 (82.48%) | 914 (79.62%) | 932 (81.26%) | 927 (80.75%) | |
| >2 drink/day | 201 (17.52%) | 234 (20.38%) | 215 (18.74%) | 221 (19.25%) | |
| Smoke status | 0.499 | ||||
| Never | 641 (55.88%) | 639 (55.66%) | 643 (56.06%) | 610 (53.14%) | |
| Former | 279 (24.32%) | 290 (25.26%) | 282 (24.59%) | 281 (24.48%) | |
| Now | 227 (19.79%) | 219 (19.08%) | 222 (19.35%) | 257 (22.39%) | |
| Diabetes | 0.290 | ||||
| Yes | 182 (15.87%) | 186 (16.20%) | 195 (17.00%) | 214 (18.64%) | |
| No | 965 (84.13%) | 962 (83.80%) | 952 (83.00%) | 934 (81.36%) | |
| Gallstones | 0.019 | ||||
| Yes | 86 (7.50%) | 99 (8.62%) | 119 (10.37%) | 125 (10.89%) | |
| No | 1,061 (92.50%) | 1,049 (91.38%) | 1,028 (89.63%) | 1,023 (89.11%) | |
| CVD | 0.301 | ||||
| Yes | 39 (3.40%) | 35 (3.05%) | 51 (4.45%) | 39 (3.40%) | |
| No | 1,108 (96.60%) | 1,113 (96.95%) | 1,096 (95.55%) | 1,109 (96.60%) |
TC, Total cholesterol; PIR, Poverty-to-income ratio; BMI, Body mass index; CVD, Cardiovascular disease.
Mean ± SD for Age (years), Total cholesterol (mg/dl), Energy (kcal), Total sugars (g), Total fat (g), Total moisture (g); p value was calculated by the weighted linear regression model. % for: Gender, Race, Educational level, PIR, Gallstones, Smoking status, Alcohol, CVD and Diabetes. p value was calculated by the weighted chi-square test.