|  |  | 2003-4 | 2008-9 | [2008-9] - [2003-4] |  |
---|---|---|---|---|---|---|
Nutrient | Standard | Level of deprivation | Mean* | (Mean change) 95%confidence interval | p-value for interaction†(year by level of deprivation) | |
NSP± (g) | Min 4.2 | Least | 2.6 | 4.0 | (1.4) 1.1,1.8 |  |
 |  | Mid | 2.6 | 3.7 | ( 1.1) 0.9,1.4 |  |
 |  | Most | 2.8 | 3.4 | (0.6) 0.3,0.9 | 0.001 |
Iron (mg) | Min 3 | Least | 1.9 | 2.3 | (0.4) 0.3,0.6 | Â |
 |  | Mid | 1.8 | 2.1 | (0.3) 0.2,0.4 |  |
 |  | Most | 1.9 | 2.0 | (0.1) -0.1,0.2 | 0.0004 |
Zinc (mg) | Min 2.5 | Least | 1.4 | 1.7 | (0.3) 0.2,0.4 | Â |
 |  | Mid | 1.3 | 1.6 | (0.3) 0.1,0.4 |  |
 |  | Most | 1.5 | 1.5 | (0.0) -0.1,0.1 | 0.002 |
Vitamin C (mg)* | Min 10.5 | Least | 16.5 | 33.4 | (0.49) 0.40,0.61 | Â |
 |  | Mid | 14.2 | 32.6 | (0.44) 0.37,0.51 |  |
 |  | Most | 14.3 | 31.9 | (0.45) 0.37,0.54 | 0.64 |