Chapter 3. Infant Feeding

Table 3.79. Percent of mothers who mixed formula with breast milk in the same bottle in the past two weeks
by infant age and selected demographics,1 among mothers who pumped milk at each age

Infant Feeding Practices Study II
  Months 0-2 Months 3-5 Months 6-7
  N % N % N %
ALL 1,140 8.9 699 8.9 449 9.1
Age
18-24 184 7.1 76 5.3 51 9.8
25-29 425 8.0 258 5.4 144 3.5
30-34 329 7.9 231 11.7 161 9.3
35+ 202 13.9 134 12.7 93 17.2
Parity
Primiparous 366 10.1 213 9.4 154 9.1
Multiparous 755 8.2 479 8.6 290 9.3
Education
HS or less 132 6.8 63 6.3 33 12.1
Some college 393 9.9 216 10.2 119 5.9
College graduate 564 8.5 401 8.2 284 9.9
Income (% of poverty)
< 185% 365 6.8 195 5.6 110 4.5
185- < 350% 436 10.6 271 8.1 186 11.3
>=350% 339 8.8 233 12.4 153 9.8
WIC Participant
No 815 8.8 547 9.3 363 9.6
Yes 325 8.9 152 7.2 86 7.0
Race
White 956 9.8 615 8.9 394 9.1
Black 34 8.8 19 5.3 11 27.3
Hispanic 73 1.4 29 3.4 17 0.0
Region
Northeast 189 7.9 121 10.7 79 7.6
Midwest 347 9.2 210 11.0 132 8.3
South 349 10.0 210 7.6 132 9.8
West 255 7.5 158 6.3 106 10.4

1Table is based on variables: M2D43, M5D43, M7D43