Table 4 |
||||||
|
Regression analysis – associations with feeding any breast milk at six months |
||||||
|
Factor |
N * |
% ** |
Odds Ratio |
(95% Confidence Interval) |
Adj*** Odds Ratio |
(95% Confidence Interval) |
|
|
||||||
|
Intention to breastfeed 6 months or more (asked at recruitment and 2–4 days after birth) |
||||||
|
"Yes" at recruitment AND in hospital interview (ref) |
107 |
68.6 |
1 |
1 |
||
|
"No" at recruitment but "Yes" at in hospital interview |
205 |
57.8 |
0.63 |
(0.42, 0.93) |
0.69 |
(0.44, 1.07) |
|
"Yes" at recruitment but "No" at in hospital interview |
27 |
57.5 |
0.62 |
(0.32, 1.21) |
0.84 |
(0.39, 1.81) |
|
Never intended to breastfeed 6 months or more |
79 |
38.4 |
0.28 |
(0.18, 0.44) |
0.41 |
(0.25, 0.67) |
|
Desire to breastfeed |
||||||
|
Other than very strong (ref) |
54 |
32.0 |
1 |
1 |
||
|
Very strong |
364 |
61.2 |
3.30 |
(2.34, 4.64) |
2.18 |
(1.45, 3.29) |
|
Confidence in breastfeeding ability |
||||||
|
Other than confident (ref) |
202 |
50.0 |
1 |
n/s |
||
|
Feels confident |
216 |
60.0 |
1.53 |
(1.15, 2.02) |
n/s |
|
|
Partner's view of breastfeeding |
||||||
|
Other than prefer breastfeed (ref) |
132 |
50.8 |
1 |
n/s |
||
|
Prefers me to breastfeed |
283 |
56.8 |
1.52 |
(1.15, 2.02) |
n/s |
|
|
Family's view of breastfeeding |
||||||
|
Other than prefer breastfeed (ref) |
180 |
48.9 |
1 |
n/s |
||
|
Prefer me to breastfeed |
238 |
60.1 |
1.95 |
(1.49, 2.55) |
n/s |
|
|
Was breastfed as a baby |
||||||
|
Not breastfed as baby (ref) |
83 |
43.7 |
1 |
1 |
||
|
Breastfed as a baby |
318 |
59.1 |
1.9 |
(1.33, 2.60) |
1.73 |
(1.19, 2.54) |
|
Breastfeeding history unknown |
17 |
47.2 |
1.15 |
(0.56, 2.36) |
1.72 |
(0.74, 4.03) |
|
Smoked pre-pregnancy |
||||||
|
No (ref) |
291 |
59.8 |
1 |
1 |
||
|
1–19/day |
101 |
48.1 |
0.62 |
(0.45, 0.86) |
1.04 |
(0.70, 1.52) |
|
20 or more/day |
24 |
38.1 |
0.41 |
(0.24, 0.71) |
0.47 |
(0.26, 0.86) |
|
Did not answer question |
2 |
50.0 |
0.67 |
(0.94, 4.82) |
1.59 |
(0.19, 13.40) |
|
Maternal body mass index |
||||||
|
Normal weight (20–25) (ref) |
272 |
57.0 |
1 |
1 |
||
|
Underweight (< 20) |
63 |
60.0 |
1.16 |
(0.76, 1.76) |
1.15 |
(0.70, 1.88) |
|
Overweight (> 25 and < 30) |
54 |
51.9 |
0.71 |
(0.47, 1.06) |
0.70 |
(0.43, 1.12) |
|
Obese (>= 30) |
29 |
37.2 |
0.39 |
(0.25, 0.62) |
0.49 |
(0.28, 0.85) |
|
Baby admitted to special care |
||||||
|
No (ref) |
379 |
55.5 |
1 |
n/s |
||
|
Yes |
39 |
48.2 |
0.74 |
(0.47, 1.18) |
n/s |
|
|
Gestation |
||||||
|
< 37 weeks (ref) |
31 |
50.0 |
1 |
n/s |
||
|
37 weeks and over |
387 |
55.1 |
1.12 |
(0.70, 1.79) |
n/s |
|
|
Breastfed within 1 hour of birth |
||||||
|
Yes (ref) |
246 |
57.8 |
1 |
n/s |
||
|
No |
172 |
50.9 |
0.71 |
(0.54, 0.93) |
n/s |
|
|
Received formula in hospital |
||||||
|
No (ref) |
328 |
60.0 |
1 |
1 |
||
|
Yes |
90 |
41.5 |
0.39 |
(0.29, 0.53) |
0.43 |
(0.30, 0.62) |
|
Education |
||||||
|
Completed tertiary (ref) |
269 |
63.9 |
1 |
n/s |
||
|
Completed secondary (but not tertiary) |
96 |
48.5 |
0.53 |
(0.38, 0.75) |
n/s |
|
|
Did not complete secondary |
53 |
36.6 |
0.33 |
(0.22, 0.48) |
n/s |
|
|
Family income (AUD) |
||||||
|
<$20,000 (ref) |
43 |
42.2 |
1 |
n/s |
||
|
$20–50,000 |
149 |
52.0 |
1.43 |
(0.95, 2.12) |
n/s |
|
|
>$50,000 |
206 |
62.2 |
2.06 |
(1.38, 3.09) |
n/s |
|
|
Income missing |
20 |
45.5 |
1.09 |
(0.59, 2.02) |
n/s |
|
|
Region of birth |
||||||
|
Australia (ref) |
269 |
50.3 |
1 |
1 |
||
|
Asia |
64 |
75.3 |
2.91 |
(1.84, 4.62) |
2.90 |
(1.57, 5.36) |
|
Other |
85 |
59.0 |
1.58 |
(1.11, 2.24) |
1.53 |
(0.99, 2.36) |
|
Employed/studying at 6 months |
||||||
|
No (ref) |
306 |
57.2 |
1 |
n/s |
||
|
Yes |
112 |
48.9 |
0.75 |
(0.56, 0.99) |
n/s |
|
|
Attended childbirth education |
||||||
|
Yes (ref) |
364 |
58.8 |
1 |
1 |
||
|
No |
54 |
37.2 |
0.45 |
(0.32, 0.63) |
0.46 |
(0.29, 0.71) |
|
Breastfeeding problems day 2–4 |
||||||
|
No (ref) |
178 |
57.6 |
1 |
n/s |
||
|
Yes |
240 |
52.8 |
0.73 |
(0.55, 0.96) |
n/s |
|
|
Rated midwife home visit extremely helpful for breastfeeding issues |
||||||
|
No (ref) |
321 |
53.3 |
1 |
n/s |
||
|
Yes |
85 |
60.7 |
1.36 |
(0.93, 1.97) |
n/s |
|
|
Did not have home visit |
12 |
54.6 |
1.05 |
(0.45, 2.47) |
n/s |
|
|
Attended breastfeeding clinic |
||||||
|
Had breastfeeding problems but did not attend clinic (ref) |
177 |
50.0 |
1 |
n/s |
||
|
Had breastfeeding problems, did attend clinic |
79 |
55.6 |
1.25 |
(0.85, 1.85) |
n/s |
|
|
Had no bf problems |
162 |
60.5 |
1.53 |
(1.11, 2.12) |
n/s |
|
|
Anxiety or depression problem in first 6 months (self-report) |
||||||
|
No (ref) |
280 |
58.0 |
1 |
1 |
||
|
Yes |
138 |
49.1 |
0.78 |
(0.59, 1.03) |
0.64 |
(0.46, 0.90) |
|
Relationship problems at all in first 6 months |
||||||
|
No (ref) |
378 |
57.0 |
1 |
1 |
||
|
Yes |
40 |
39.6 |
0.56 |
(0.38, 0.84) |
n/s |
|
|
Age at recruitment (continuous variable used)# |
- |
- |
0.48 # |
(0.35, 1.84) |
1.58 # |
(1.35, 1.86) |
|
|
||||||
|
* Number of women who gave that response who were continuing to breastfeed at 6 months ** Proportion of women who gave that response who were continuing to breastfeed at 6 months ***Adj: adjusted; bf: breastfeeding; n/s: not significant, not retained in model # ORs for age are the odds per five year increase in age |
||||||
|
Forster et al. International Breastfeeding Journal 2006 1:18 doi:10.1186/1746-4358-1-18 |
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