Table 2.
Daily mean nutrient density for vitamins and minerals by sex in Moroccan pupils aged 15–19 years, November 2007–January 2008
| Boys (n 118) | Girls (n 175) | ||||
|---|---|---|---|---|---|
| Mean | sd | Mean | sd | P | |
| Water-soluble vitamins | |||||
| Thiamin (mg/MJ) | 0·1 | 0·0 | 0·1 | 0·0 | 0·129 |
| Riboflavin (mg/MJ) | 0·1 | 0·0 | 0·2 | 0·0 | 0·208 |
| Niacin (NE/MJ) | 2·7 | 0·3 | 2·6 | 0·3 | 0·311 |
| Pantothenic acid (mg/MJ) | 0·49 | 0·1 | 0·52 | 0·1 | 0·011 |
| Pyridoxine (mg/MJ) | 0·17 | 0·0 | 0·18 | 0·0 | 0·000 |
| Biotin (μg/MJ) | 2·2 | 0·6 | 2·5 | 0·7 | 0·000 |
| Folate (μg DFE/MJ) | 30·4 | 4·9 | 29·4 | 4·8 | 0·000 |
| Vitamin B12 (μg/MJ) | 0·8 | 0·1 | 0·7 | 0·2 | 0·017 |
| Ascorbic acid (mg/MJ) | 10·0 | 3·6 | 13·6 | 4·4 | 0·000 |
| Fat-soluble vitamins | |||||
| Vitamin A (μg RE/MJ) | 91·3 | 18·7 | 108·0 | 24·0 | 0·004 |
| Vitamin K (μg/MJ) | 16·2 | 3·7 | 16·3 | 3·3 | 0·017 |
| Trace elements and minerals | |||||
| Iodine (μg/MJ) | 6·8 | 1·2 | 7·4 | 1·2 | 0·042 |
| Fe (mg/MJ) | 1·9 | 0·3 | 1·8 | 0·2 | 0·002 |
| Ca (mg/MJ) | 75·9 | 17·2 | 78·7 | 14·5 | 0·000 |
| Mg (mg/MJ) | 32·2 | 3·3 | 31·7 | 3·7 | 0·000 |
| P (mg/MJ) | 117·1 | 14·6 | 114·8 | 15·0 | 0·065 |
| K (mg/MJ) | 294·4 | 34·7 | 306·7 | 44·3 | 0·000 |
| Na (mg/MJ) | 320·3 | 47·9 | 298·8 | 45·6 | 0·821 |
P, P value for Mann–Whitney U test (P > 0·05 indicates that Mann–Whitney U test is not significant); NE, niacin equivalents; DFE, dietary folate equivalents; RE, retinol equivalents.