Table 1.
Demographic, socio-economic, and behavioural variables by tertile of drinking water intake (g/day) and by sex 1.
| Men | Women | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Tertile of Drinking Water Intake | Tertile of Drinking Water Intake | |||||||||
| All | ≤474 mL/Day | 474–879 mL/Day | >879 mL/Day | p | All | ≤500 mL/Day | 500–932 mL/Day | >934 mL/Day | p | |
| n | 776 | 275 | 259 | 242 | 1142 | 405 | 365 | |||
| Mean ± SD | Mean ± SD | |||||||||
| Age (years) | 49.0 ± 17.8 | 50.5 ± 16.9 | 48.7 ± 19.1 | 47.9 ± 17.2 | 0.333 | 45.2 ± 15.0 | 45.4 ± 15.1 | 45.1 ± 15.4 | 45.0 ± 14.6 | 0.977 |
| (%) | (%) | |||||||||
| Socio-occupational status | 0.001 | 0.009 | ||||||||
| Low | 20.4 | 19.1 | 18.1 | 23.9 | 10.1 | 6.9 | 10.1 | 13.4 | ||
| Intermediate | 26.2 | 25.2 | 21.2 | 32.0 | 40.4 | 41.7 | 38.4 | 41.0 | ||
| High | 10.7 | 8.6 | 11.1 | 12.2 | 7.3 | 5.7 | 5.5 | 10.6 | ||
| Economically inactive | 42.7 | 47.1 | 49.6 | 31.9 | 42.2 | 45.7 | 46.1 | 34.9 | ||
| Familial status | 0.182 | 0.204 | ||||||||
| Couple with children | 26.5 | 25.7 | 22.7 | 30.8 | 33.0 | 33.3 | 31.5 | 34.2 | ||
| Couple without child | 47.9 | 52.2 | 47.2 | 44.4 | 34.4 | 29.6 | 35.8 | 37.8 | ||
| Single parent household | 6.3 | 4.9 | 8.8 | 5.2 | 7.0 | 9.1 | 5.9 | 6.0 | ||
| Single without children | 19.3 | 17.2 | 21.3 | 19.5 | 25.4 | 27.9 | 26.4 | 22.1 | ||
| No answer | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.4 | 0.0 | ||
| Quintile of ICU † | 0.009 | 0.154 | ||||||||
| 1 | 20.2 | 25.2 | 18.2 | 17.3 | 20.6 | 23.5 | 20.9 | 17.5 | ||
| 2 | 19.3 | 21.3 | 22.3 | 14.3 | 19.9 | 19.1 | 19.2 | 21.2 | ||
| 3 | 23.1 | 14.9 | 27.3 | 26.9 | 19.6 | 21.5 | 18.9 | 18.6 | ||
| 4 | 19.6 | 19.2 | 17.8 | 21.8 | 23.2 | 20.7 | 24.9 | 24.0 | ||
| 5 | 17.8 | 19.4 | 14.3 | 19.8 | 16.7 | 15.1 | 16.1 | 18.7 | ||
| Food insecurity | 0.339 | 0.303 | ||||||||
| Yes | 9.9 | 9.3 | 11.9 | 8.3 | 11.9 | 14.0 | 10.2 | 11.5 | ||
| No | 85.9 | 84.2 | 83.7 | 89.6 | 83.2 | 81.7 | 86.0 | 81.9 | ||
| No answer | 4.3 | 6.4 | 4.3 | 2.1 | 4.9 | 4.4 | 3.8 | 6.6 | ||
| Perception of household financial situation | 0.242 | 0.174 | ||||||||
| High | 6.4 | 8.7 | 5.3 | 5.3 | 94.7 | 92.8 | 94.8 | 96.6 | ||
| Low | 93.0 | 90.5 | 93.9 | 94.6 | 5.0 | 7.0 | 4.7 | 3.4 | ||
| No answer | 0.5 | 0.7 | 0.8 | 0.1 | 0.3 | 0.2 | 0.6 | 0.0 | ||
| Level of education | 0.010 | 0.599 | ||||||||
| Low | 15.4 | 21.0 | 17.0 | 8.4 | 20.1 | 22.1 | 20.2 | 18.1 | ||
| Intermediate | 55.5 | 53.4 | 53.8 | 59.2 | 48.6 | 49.1 | 49.5 | 47.2 | ||
| High | 29.0 | 25.7 | 29 | 32.2 | 31.2 | 28.8 | 30.0 | 34.7 | ||
| No answer | 0.1 | 0.0 | 0.2 | 0.2 | 0.1 | 0.0 | 0.3 | 0.0 | ||
| Region of residence | 0.128 | 0.008 | ||||||||
| Northwest | 13.8 | 12.8 | 13.3 | 15.2 | 15 | 11.2 | 19 | 15 | ||
| East | 8.9 | 10.0 | 11.2 | 5.6 | 9.7 | 8.5 | 8.7 | 11.8 | ||
| Ile De France | 17.7 | 19.7 | 14.7 | 18.8 | 17.3 | 22.5 | 15.0 | 14.3 | ||
| West | 14.1 | 15.2 | 13.8 | 13.3 | 14.4 | 12.5 | 18.1 | 12.6 | ||
| Centre | 10.4 | 10.4 | 13.6 | 7.4 | 9.6 | 10.3 | 9.5 | 9.1 | ||
| Centre-east | 11.6 | 10.1 | 7.9 | 16.5 | 12.6 | 14.8 | 12.2 | 10.8 | ||
| South-west | 11.2 | 10.4 | 12.8 | 10.3 | 10.0 | 9.2 | 6.2 | 14.4 | ||
| South-east | 12.4 | 11.5 | 12.6 | 13.0 | 11.5 | 11.1 | 11.4 | 12.0 | ||
| Season of protocol completion | 0.004 | <0.001 | ||||||||
| Winter | 23.8 | 27.4 | 25.0 | 19.0 | 26.9 | 33.1 | 25.3 | 22.5 | ||
| Spring | 26.4 | 22.4 | 25.4 | 31.4 | 23.5 | 23.6 | 22.1 | 24.7 | ||
| Summer | 24.0 | 21.2 | 20.3 | 30.3 | 26.9 | 16.8 | 28.9 | 35.0 | ||
| Autumn | 25.9 | 29.0 | 29.3 | 19.4 | 22.6 | 26.5 | 23.7 | 17.8 | ||
| Level of physical activity (IPAQ score) | 0.017 | 0.808 | ||||||||
| Low | 20.7 | 24.6 | 20.6 | 17.0 | 24.0 | 23.3 | 24.3 | 24.5 | ||
| Middle | 29.6 | 31.8 | 33.9 | 23.2 | 32.4 | 34.2 | 33.4 | 29.7 | ||
| High | 48.6 | 43.3 | 45.3 | 56.9 | 42.4 | 41.6 | 41.1 | 44.5 | ||
| No answer | 1.1 | 0.2 | 0.2 | 2.8 | 1.1 | 0.9 | 1.2 | 1.2 | ||
| Smoker | 0.004 | 0.164 | ||||||||
| Smoker | 28.1 | 36.5 | 22.3 | 25.7 | 23.3 | 26.9 | 19.9 | 23.0 | ||
| Not smoker | 71.9 | 63.5 | 77.7 | 74.3 | 76.7 | 73.1 | 80.1 | 77.0 | ||
Abbreviations: ICU, income per consumption unit; IPAQ, International Physical Activity Questionnaire. 1 Values are survey-weighted means with standard deviations; † quintiles of ICU were ≤700; ]700;976]; ]976;1367]; ]1367;1867]; >1867 and ≤580; ]580;915]; ]915;1306]; ]1306;1867]; among men and women, respectively.