Table 3.
The impact of Diet Quality Index–International (DQII) score and its categories on changes in adiposity between baseline and 2-year follow-up in 546 Canadian children (244 girls and 302 boys) participating in the QUALITY (QUebec Adipose and Lifestyle InvesTigation in Youth) study
| Overall DQII | Variety | Adequacy | Moderation | Balance† | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Change in | β coefficient‡ | 95 % CI | β coefficient | 95 % CI | β coefficient | 95 % CI | β coefficient | 95 % CI | β coefficient | 95 % CI |
| BMI | ||||||||||
| Unadjusted | −0·09 | −0·30, 0·10 | −0·01 | −0·06, 0·03 | −0·04* | −0·08, −0·007 | 0·02 | −0·01, 0·05 | −0·10 | −0·43, 0·23 |
| Adjusted§ | −0·06 | −0·26, 0·14 | −0·003 | −0·05, 0·04 | −0·02 | −0·07, 0·02 | 0·006 | −0·03, 0·04 | −0·11 | −0·44, 0·21 |
| Fat mass index | ||||||||||
| Unadjusted | −0·18* | −0·35, −0·009 | −0·03 | −0·06, 0·009 | −0·05** | −0·08, −0·02 | 0·01 | −0·02, 0·04 | −0·08 | −0·36, 0·20 |
| Adjusted§ | −0·16 | −0·33, 0·01 | −0·02 | −0·06, 0·02 | −0·05* | −0·08, −0·008 | −0·003 | −0·04, 0·03 | −0·10 | −0·37, 0·17 |
| Central fat mass index | ||||||||||
| Unadjusted | −0·10* | −0·18, −0·01 | −0·01 | −0·03, 0·002 | −0·03** | −0·04, −0·01 | 0·006 | −0·007, 0·02 | −0·04 | −0·18, 0·10 |
| Adjusted§ | −0·08* | −0·17, −0·003 | −0·01 | −0·03, 0·006 | −0·03** | −0·05, −0·007 | −0·001 | −0·02, 0·01 | −0·04 | −0·17, 0·09 |
| % Body fat | ||||||||||
| Unadjusted | −0·55 | −1·11, 0·01 | −0·09 | −0·21, 0·03 | −0·13* | −0·24, −0·02 | 0·008 | −0·08, 0·10 | 0·21 | −0·70, 1·13 |
| Adjusted§ | −0·55* | −1·08, −0·02 | −0·08 | −0·21, 0·04 | −0·15* | −0·28, −0·03 | −0·03 | −0·13, 0·07 | 0·03 | −0·82, 0·90 |
| % Central body fat | ||||||||||
| Unadjusted | −0·28* | −0·57, −0·0003 | −0·06 | −0·12, 0·002 | −0·07** | −0·13, −0·02 | 0·01 | −0·03, 0·06 | 0·15 | −0·31, 0·62 |
| Adjusted§ | −0·28 | −0·55, 0·0007 | −0·05 | 0·11, 0·01 | −0·09** | −0·15, −0·02 | −0·008 | −0·06, 0·04 | 0·07 | −0·38, 0·52 |
*P<0·05, **P<0·01.
†
Balance was entered into the analysis as dichotomous variable: score ≥2 v. score <2.
‡
Coefficients represent the change in adiposity outcomes per 10-unit change in overall DQII.
§
Linear regression model adjusted for sex and baseline values of age, outcome variables, Tanner stage, total daily energy intake and physical activity, as well as change in Tanner stage and change in physical activity between baseline and follow-up.