Table 1.
Consumption of plain water (total, tap and bottled, in ml/d) by age group, sex and sociodemographic group; French children aged 4–13 years (n 835), INCA 2 (Étude Individuelle Nationale des Consommations Alimentaires 2006–2007)
| Total plain water (mld) | Tap water (ml/d) | Bottled water (ml/d) | |||||
| n | Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | |
| All children | 835 | 453·0 | 431·6, 474·4 | 242·5 | 219·2, 265·9 | 210·5 | 190·6, 230·3 |
| Age group | |||||||
| 4–8 years | 355 | 407·6 | 373·0, 442·2 | 207·8 | 174·5, 241·2 | 199·8 | 172·5, 227·0 |
| 9–13 years | 480 | 498·6 | 461·2, 535·9 | 277·4 | 243·2, 311·5 | 221·2 | 192·4, 250·0 |
| P value | <0·0001 | <0·001 | 0·2664 | ||||
| Sex | |||||||
| Boys | 400 | 489·0 | 448·1, 529·9 | 267·3 | 230·4, 304·3 | 221·7 | 189·1, 254·2 |
| Girls | 435 | 411·9 | 383·3, 440·5 | 214·2 | 184·6, 243·8 | 197·7 | 174·5, 220·9 |
| P value | <0·001 | <0·01 | 0·2348 | ||||
| Age × sex groups | |||||||
| Boys 4–8 years | 172 | 434·6 | 383·5, 485·7 | 239·0 | 190·9, 287·0 | 195·6 | 150·2, 241·0 |
| Boys 9–13 years | 228 | 543·3 | 489·5, 597·2 | 295·7 | 247·4, 344·0 | 247·7 | 205·0, 290·4 |
| Girls 4–8 years | 183 | 377·0 | 344·6, 409·5 | 172·5 | 139·2, 205·9 | 204·5 | 174·1, 234·8 |
| Girls 9–13 years | 252 | 447·2 | 406·7, 487·7 | 256·4 | 216·3, 296·5 | 190·8 | 159·9, 221·7 |
| P value | <0·0001 | <0·0001 | 0·1542 | ||||
| Family income-to-poverty ratio* | |||||||
| <1 | 356 | 433·3 | 397·3, 469·3 | 246·6 | 208·1, 285·0 | 186·7 | 157·2, 216·3 |
| 1–1·99 | 327 | 479·3 | 429·3, 529·3 | 250·4 | 213·2, 287·6 | 228·9 | 186·4, 271·5 |
| ≥2 | 152 | 438·1 | 399·0, 477·2 | 214·0 | 172·6, 255·3 | 224·2 | 182·1, 266·2 |
| P value | 0·2087 | 0·3512 | 0·1840 | ||||
P value is for ANOVA with post hoc Bonferroni-adjusted comparisons; significant P values are indicated in bold font.
*
‘<1’ means below the poverty threshold; ‘≥2’ means more than two times higher than the poverty threshold.