Table 1. Characteristics of mother-infant dyads enrolled in the Tennessee Children’s Research Initiative by breastfeeding history, 2004-2008.
| Characteristic | Never Breastfed (N =273) n (%) |
Ever Breastfed (N= 356) n (%) |
|---|---|---|
| Maternal age * ≠ | 23[20,28] | 26[22,31] |
| Maternal race ≠ | ||
| White | 166 (61) | 209 (59) |
| Black | 84 (31) | 58 (16) |
| Hispanic | 20 (7) | 66 (19) |
| Other | 2 (1) | 23 (6) |
| Maternal asthma | ||
| Yes | 53 (19) | 69 (19) |
| Smoke exposure ≠ | ||
| Yes | 178 (66) | 167 (47) |
| Insurance type ≠ | ||
| Private | 46 (17) | 115 (32) |
| Medicaid | 215 (79) | 212 (60) |
| None | 12 (4) | 29 (8) |
| Gestational age * | 39 [38,40] | 39 [38,40] |
| Birth weight (g) * ≠ | 3232[2948,3544] | 3345[3062,3685] |
| Infant sex | ||
| Female | 124 (45) | 153 (43) |
| Male | 149 (55) | 203 (57) |
| Infant age (weeks) | 11 [6,26] | 13 [6,28] |
| Daycare attendance | ||
| Yes | 69 (25) | 84 (24) |
| Siblings in home * | 1 [1,2] | 1 [0.75, 2] |
| ARI type | ||
| LRTI | 207 (76) | 248 (70) |
| URI | 66 (24) | 108 (30) |
| Bronchiolitis Severity Score * ≠ | 5 [2,8] | 4 [1,7.5] |
| Length of Stay (for hospitalized, n=423) * ≠ | 3 [2,5] | 2 [2,4] |
| Infants hospitalized with LRTI (n=392) | ||
| Bronchiolitis Severity Score*≠ | 7 [5,9] | 7 [4.5,8.5] |
| Length of Stay* | 3 [2,5] | 3 [2,4] |
*
values reported contain the median and interquartile ranges for continuous variables
≠
p<0.05