Table 2.
Risk ratios (RR) for the association between the 2009 WIC food package change and obesity at age 4 years by family income among a matched sample of WIC-participating children in Los Angeles County, 2003–2016 (n 79 502)
| Boys | Girls | |||||
|---|---|---|---|---|---|---|
| RR | 95 % CI | Interaction P | RR | 95 % CI | Interaction P | |
| Very low income (< 50 % FPL) | ||||||
| New food package | 0·85 | 0·79, 0·92 | 0·71 | 0·88 | 0·81, 0·96 | 0·28 |
| Old food package | 1·00 | 1·00 | ||||
| Low income (50–100 % FPL) | ||||||
| New food package | 0·87 | 0·82, 0·91 | Ref. | 0·93 | 0·88, 0·99 | Ref. |
| Old food package | 1·00 | 1·00 | ||||
| Above poverty (> 100 % to < 185 % FPL) | ||||||
| New food package | 0·82 | 0·76, 0·88 | 0·16 | 0·88 | 0·81, 0·95 | 0·22 |
| Old food package | 1·00 | 1·00 | ||||
WIC, Special Supplemental Nutrition Program for Women, Infants and Children; FPL, federal poverty level.