Table 2.
Distribution of dietary fiber and its source by sex 1.
| Quintile (Quartile) of Dietary Fiber and Its Source | |||||
|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | Q5 | |
| Men (n) | (1378) | (1378) | (1379) | (1378) | (1378) |
| Total fiber, g | |||||
| Median ± SE | 11.7 ± 0.1 | 18.5 ± 0.1 | 24.3 ± 0.1 | 31.4 ± 0.1 | 43.9 ± 0.4 |
| Interquartile range (Q1–Q3) | 9.2–13.6 | 16.9–19.9 | 22.9–25.9 | 29.3–33.7 | 39.7–52.4 |
| Carbohydrate: Total fiber | |||||
| Median ± SE | 8.4 ± 0.04 | 11.1 ± 0.02 | 13.7 ± 0.02 | 16.7 ± 0.04 | 23.1 ± 0.3 |
| Interquartile range (Q1–Q3) | 7.3–9.2 | 10.5–11.8 | 13.1–14.3 | 15.8–17.7 | 20.7–27.3 |
| Cereal fiber, g | |||||
| Median ± SE | 1.6 ± 0.02 | 3.0 ± 0.01 | 4.6 ± 0.02 | 6.7 ± 0.02 | 11.2 ± 0.2 |
| Interquartile range (Q1–Q3) | 1.2–2.0 | 2.7–3.3 | 4.2–5.0 | 6.0–7.4 | 9.5–14.3 |
| Vegetable fiber, g | |||||
| Median ± SE | 2.8 ± 0.04 | 5.4 ± 0.02 | 7.7 ± 0.02 | 10.7 ± 0.03 | 16.4 ± 0.2 |
| Interquartile range (Q1–Q3) | 1.8–3.5 | 4.8–6.0 | 7.1–8.4 | 9.8–11.7 | 14.3–20.2 |
| Fruit fiber, g | (2273) | (1172) | (1723) | (1723) | |
| Median ± SE | 0.0 ± 0.0 | 0.1 ± 0.01 | 2.0 ± 0.03 | 8.0 ± 0.2 | |
| Interquartile range (Q1–Q3) | 0.0–0.0 | 0.01–0.2 | 1.2–3.0 | 5.5–12.1 | |
| Women (n) | (1980) | (1980) | (1981) | (1980) | (1980) |
| Total fiber, g | |||||
| Median ± SE | 9.7 ± 0.1 | 15.5 ± 0.04 | 20.5 ± 0.04 | 27.0 ± 0.1 | 39.2 ± 0.3 |
| Interquartile range (Q1–Q3) | 7.4–11.3 | 14.2–16.7 | 19.2–21.9 | 25.2–29.1 | 34.7–47.4 |
| Carbohydrate: Total fiber | |||||
| Median ± SE | 7.7 ± 0.03 | 10.3 ± 0.02 | 12.7 ± 0.02 | 15.6 ± 0.03 | 21.6 ± 0.2 |
| Interquartile range (Q1–Q3) | 6.6–8.5 | 9.7–10.8 | 12.0–13.2 | 14.8–16.6 | 19.3–26.0 |
| Cereal fiber, g | |||||
| Median ± SE | 1.3 ± 0.01 | 2.5 ± 0.01 | 3.8 ± 0.01 | 5.5 ± 0.02 | 9.6 ± 0.2 |
| Interquartile range (Q1–Q3) | 0.9–1.6 | 2.2–2.8 | 3.4–4.2 | 5.0–6.2 | 8.1–12.7 |
| Vegetable fiber, g | |||||
| Median ± SE | 1.8 ± 0.02 | 3.9 ± 0.01 | 5.8 ± 0.01 | 8.3 ± 0.02 | 13.5 ± 0.1 |
| Interquartile range (Q1–Q3) | 1.1–2.5 | 3.4–4.4 | 5.3–6.3 | 7.5–9.1 | 11.5–16.7 |
| Fruit fiber, g | (2475) | (2474) | (2477) | (2475) | |
| Median ± SE | 0.0 ± 0.0 | 0.5 ± 0.01 | 3.2 ± 0.02 | 8.9 ± 0.2 | |
| Interquartile range (Q1–Q3) | 0.0–0.0 | 0.2–1.1 | 2.4–4.1 | 7.0–13.7 | |
SE, standard error. 1 All of the analyses accounted for the effects of the complex sampling design and appropriate sampling weights of the national survey using the PROC SURVEY procedures in the SAS software.