Table 3.
Total vitamin C intake from diet only for the age groups 1–3, 3–10, 11–14, 15–18, 19–64, 65–74. 75 + derived from NDNS rolling data years 9–11.
| Age group (years) | N | Mean ±SD | Median (IQR) (mg) |
Min | Max | Lower percentile | Upper percentile | RNI (mg) |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5th | 10th | 25th | 75th | 80th | 95th | |||||||
| 1–3 | 109 | 64.25 ± 34.29 | 57.06 (223.47) | 9.73 | 233.19 | 21.50 | 25.85 | 38.29 | 82.75 | 89.33 | 123.74 | 30 |
| 4–10 | 314 | 74.88 ± 39.35 | 68.62 (285.03) | 5.41 | 290.44 | 23.90 | 31.17 | 45.67 | 96.06 | 105.14 | 152.72 | 30 |
| 11–14 | 167 | 77.93 ± 50.65 | 69.10 (395.53) | 7.30 | 402.83 | 18.01 | 25.53 | 43.94 | 100.35 | 107.59 | 172.42 | 35 |
| 15–18 | 155 | 74.14 ± 49.67 | 61.73 (312.56) | 2.06 | 314.62 | 20.24 | 25.04 | 38.05 | 97.12 | 110.44 | 167.55 | 40 |
| 19–64 | 2,156 | 84.69 ± 57.03 | 73.31 (588.65) | 2.55 | 591.20 | 19.81 | 28.22 | 44.59 | 112.01 | 122.43 | 181.83 | 40 |
| 65–74 | 399 | 85.82 ± 53.69 | 72.46 (323.40) | 9.37 | 332.76 | 21.68 | 30.14 | 47.41 | 111.52 | 126.41 | 187.27 | 40 |
| 75+ | 258 | 72.55 ± 44.65 | 60.45 (206.99) | 6.77 | 213.76 | 19.47 | 24.79 | 40.02 | 94.73 | 109.10 | 165.71 | 40 |
mg, milligram; IQR, Interquartile range; RNI, Reference Nutrient Intake. RNI concentrations vary by age range; SD, standard deviation.