Table 3

Count (%) of participants' age category at start of exposure category by exposure category

Age at start of exposure periodExposure group
Pre-intervention (%)During intervention (%)Post-intervention (%)
 0 to 11 months928 (9.6)446 (4.6)377 (3.9)
 1 y509 (5.2)416 (4.3)421 (4.3)
 2 y394 (4.1)381 (3.9)394 (4.1)
 3 y291 (3)377 (3.9)377 (3.9)
 4 y275 (2.8)318 (3.3)319 (3.3)
 5–14 y2377 (24.5)2540 (26.2)2542 (26.2)
 15–34 y2530 (26.1)2669 (27.5)2699 (27.8)
 35–54 y1595 (16.4)1688 (17.4)1680 (17.3)
 55–74 y722 (7.4)740 (7.6)757 (7.8)
 75 y plus81 (0.8)127 (1.3)136 (1.4)
  • Age was defined at the beginning of the age category within the exposure period. Every time an individual joined a new age category, or changed intervention state, their age changed to the beginning of that category.