Table 2 General characteristics of 3250 participants of the Nutrition and Health Survey according to dietary fiber intake categories
Characteristics | Dietary fiber intake | P-value* | |||
|---|---|---|---|---|---|
Q1(2.1 ~ 9.8 g) (n = 812) | Q2(~ 13.5 g) (n = 813) | Q3(~ 21.4 g) (n = 813) | Q4(~ 55.7 g) (n = 812) | ||
Age(years) | 48.5 ± 1.7 | 51.3 ± 1.4 | 50.9 ± 1.5 | 52.4 ± 1.9 | < 0.0001 |
BMI(kg/m2) | 26.2 ± 4.5 | 25.1 ± 4.7 | 24.9 ± 4.1 | 23.6 ± 5.3 | < 0.0001 |
Obesity[n(%)] | 138(17.0) | 89(10.9) | 67(8.2) | 46(5.7) | < 0.0001 |
Hypertension[n(%)] | 203(22.8) | 174(20.8) | 176(21.9) | 150(20.7) | 0.017 |
T2DM[n(%)] | 59(7.3) | 50(6.2) | 41(5.0) | 32(3.9) | < 0.0001 |
Gender (%) | χ2 = 7.331 0.062 | ||||
Men | 416(51.2) | 409(50.3) | 369(45.4) | 382(47.0) | |
Women | 396(49.8) | 404(49.7) | 444(54.6) | 430(53.0) | |
Smoking status(%) | χ2 = 60.388 < 0.0001 | ||||
Never-smokers | 379(46.7) | 403(50.0) | 398(49.0) | 496(61.1) | |
Former-smokers | 273(33.6) | 262(32.2) | 258(31.7) | 244(30.0) | |
Current-smoker | 160(19.7) | 148(17.8) | 157(19.3) | 72(8.9) | |
Education[n(%)] | χ2 = 52.182 < 0.0001 | ||||
< High school | 137(16.9) | 217(26.7) | 200(24.6) | 225(27.7) | |
High school | 458(56.4) | 455(56.0) | 468(57.6) | 450(55.4) | |
> High school | 217(26.7) | 141(17.3) | 145(17.8) | 137(16.9) | |
Income/per month/ person (%) | χ2 = 29.061 < 0.0001 | ||||
< 2000(RMB) | 275(33.9) | 297(36.5) | 307(37.8) | 341(42.0) | |
2000-5000(RMB) | 412(50.7) | 385(47.4) | 410(50.4) | 398(49.0) | |
> 5000(RMB) | 125(15.4) | 131(16.1) | 96(11.8) | 73(9.0) | |
Physical activity (METs-h/week) | 23.2 ± 2.88 | 22.9 ± 2.17 | 26.5 ± 2.91 | 30.6 ± 3.09 | < 0.0001 |
Total energy intake (kcal/d) | 2194.5 ± 524.7 | 2203.2 ± 549.6 | 2094.8 ± 519.7 | 1807.8 ± 512.0 | < 0.0001 |