Table 2.
Estimated average weight change (g) after first year by 20% price increase, body mass index (BMI),* and household income†
| BMI group by household income | No of participants | Change in weight (g) (95% CI) | |||||
|---|---|---|---|---|---|---|---|
| Beverages | Biscuits | Confectionery‡ | Cake | High sugar snacks | Beverages and snacks | ||
| Not overweight: | |||||||
| Low | 372 | −247 (−316 to −178) | −152 (−189 to −115) | −645 (−748 to −543) | −180 (−229 to −129) | −889 (−1340 to −439) | −1136 (−1387 to −885) |
| Middle | 473 | −35.7 (−74.9 to 3.4) | −419 (−501 to −336) | −578 (−661 to −495) | −505 (−644 to −366) | −1451 (−2123 to −780) | −1494 (−1801 to −1188) |
| High | 191 | 97.5 (3.0 to 192) | −115 (−211 to −8.4) | −521 (−631 to −411) | −524 (−773 to −276) | −1126 (−2057 to −195) | −1010 (−1343 to −678) |
| Overweight: | |||||||
| Low | 273 | −445 (−570 to −321) | −472 (−582 to −363) | −495 (−575 to −415) | +395 (287 to 504) | −473 (−717 to −229) | −911 (−1115 to −707) |
| Middle | 440 | −574 (−702 to −445) | −809 (−967 to −651) | −423 (−483 to −362) | −346 (−442 to −250) | −1544 (−2259 to −830) | −-2100 (−2530 to −1671) |
| High | 156 | −48.1 (−70.1 to 0.8) | −418 (−543 to −293) | −539 (−653 to −424) | −665 (−981 to −349) | −1646 (−3005 to −287) | −1726 (−2291 to −1162) |
| Obese: | |||||||
| Low | 266 | −270 (−346 to −194) | −1023 (−1254 to −793) | −762 (−884 to −640) | 41.4 (−21.6 to 104.3) | −1706 (−2568 to −844) | −1987 (−2423 to −1550) |
| Middle | 292 | −32.3 (−141.6 to 76.9) | −879 (−1051 to −706) | −399 (−457 to −340) | −270 (−345 to −194) | −1512 (−2213 to −810) | −1604 (−1935 to −1274) |
| High | 81 | 457 (298 to 616) | −531 (−690 to −371) | −393 (−479 to −307) | −551 (−815 to −288) | −1448 (−2648 to −247) | −1024 (−1365 to −684) |
| All | 2544 | −203 (−269 to −137) | −550 (−691 to −409) | −538 (−633 to −444) | −262 (−361 to −162) | −1301 (−2088 to −513) | −1511 (−1898 to −1121) |
*
Not overweight (BMI <25), overweight (25 to <30), and obese (≥30).
†
Low <£20 000, middle £20 000-49 999, high ≥£50 000.
‡
Includes chocolate.