Table 1.
Baseline characteristics and SSB consumption of study sample (n = 904)a
| Characteristics | Value |
|---|---|
| Socio-demographic issues | |
| Age at baseline (years) | 12 (9, 14) |
| BMI z-scoreb | − 0.4 (1.2) |
| Boy [n (%)] | 482 (53.3) |
| Single childc [n (%)] | 655 (72.5) |
| Paternal age (years) | 39 (36, 42) |
| Maternal age (years) | 38 (35, 41) |
| Parental education duration > 12 years [n (%)] | 107 (11.8) |
| High monthly personal incomed [n (%)] | 307 (34.0) |
| Live in urban area [n (%)] | 305 (33.7) |
| Boy’s energy intake (kcal) | 1714.0 (1397.7, 2186.2) |
| Girl’s energy intake (kcal) | 1618.7 (1259.6, 1919.7) |
| Children’s SSB consumption | |
| Proportion of SSB consumers [n (%)] | 792 (87.6) |
| SSB intake per capitae (ml/day) | 70.3 (0, 345.2) |
| SSB intake per consumersf (ml/day) | 205.4 (128.6, 300.0) |
| Paternal SSB consumption | |
| Proportion of SSB consumers [n (%)] | 331 (36.6) |
| SSB intake per capitae (ml/day) | 23.2 (0, 107.1) |
| SSB intake per consumersf (ml/day) | 35.7 (17.9, 69.6) |
| Maternal SSB consumption | |
| Proportion of SSB consumers [n (%)] | 437 (48.3) |
| SSB intake per capitae (ml/day) | 19.7 (0, 78.6) |
| SSB intake per consumersf (ml/day) | 21.4 (14.3, 37.5) |
SSB sugar-sweetened beverage
aValues are means (SD) or medians (Q1, Q3) or frequencies
bBMI z-score, body mass index z-score calculated according to the Chinese reference curves[31]
cSingle child, children from families with only one child
dMonthly personal income at least ≥ 3200 CNY (Chinese Yuan), which is a moderate level among the general population in China [55]
eAll participants, including those who had a zero value for the SSB category (consumers and non-consumers) and data were presented as mean (fifth percentile, ninety-fifth percentile) to obtain more information about various changes [33]
fOnly participants with the category of SSB consumption (consumers) and data were presented as median (Q1, Q3)
*Significant differences between the categories of characteristics, tested using Student’s t-test for normally distributed continuous variables, Kruskal–Wallis H test for non-normally distributed continuous variables and chi-square test for categorical variables