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. 2014 May 8;18(3):453–463. doi: 10.1017/S1368980014000603

Table 1.

Participant characteristics by any breast-feeding duration among low-income women (n 5886) enrolled prenatally in a peer counselling breast-feeding support programme, Michigan, USA, 2005–2011

<1 month duration ≥1 month duration
(n 1267) (n 4122)
n % n % χ 2 P value
Maternal age (years)
<20 432 34·4 953 23·4 <0·001
20–30 659 52·5 2255 55·3
>30 165 13·1 872 21·4
Education
<High-school diploma 348 27·7 925 22·8
High-school diploma or equivalent 907 72·3 3135 77·2 <0·001
Race/ethnicity
White, non-Hispanic 867 70·9 2296 58·3 <0·001
Black, non-Hispanic 269 22·0 1150 29·2
Hispanic 87 7·1 493 12·5
Marital status
Single/unmarried couple 885 75·0 2348 66·2 <0·001
Married 295 25·0 1198 33·8
Monthly income
$US 800 or less 661 54·4 2089 52·3 0·20
$US 801 or more 555 45·6 1908 47·7
Residence
Towns and cities (<50 000 inhabitants) and rural 956 75·5 2811 68·2 <0·001
Cities and suburbs of cities (>50 000 inhabitants) 311 24·6 1311 31·8
Enrolled in WIC
Yes 1194 94·2 3858 93·6 0·41
No 73 5·8 264 6·4
No. of other children in household
0 687 54·2 1966 47·7 <0·001
≥1 580 45·8 2156 52·3
Previous breast-feeding experience
No 1037 81·9 2884 70·0 <0·001
Yes 230 18·2 1238 30·0
Infant gender
Male 641 50·6 2105 51·1 0·77
Female 626 49·4 2017 48·9
Gestational age
Premature (<37 weeks) 109 8·6 325 7·9 0·41
Full term 1158 91·4 3797 92·1
Birth weight
Low (<2500 g) 1177 92·9 3858 93·6 0·38
Normal (≥2500 g) 90 7·1 264 6·4

WIC, Special Supplemental Nutrition Program for Women, Infants, and Children.

Data are presented as n and %.

n for individual variables may vary due to missing or incomplete data.