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Table 2 Unadjusted associations between 6-month exclusive breastfeeding and potential predictors

From: Prevalence and predictors of 6-month exclusive breastfeeding among Canadian women: a national survey

 

Sample size

N*

Exclusive breast-feeding

N* (%)

Unadjusted odds ratio

OR (95% CI)†

Household income (Canadian dollar)

   

   <$30,000

908

98 (10.8)

1

   $30,000 to less than $60,000

1,640

194 (11.8)

1.11 (0.84-1.47)

   $60,000 to less than $100,000

1,657

231 (13.9)

1.35 (1.02-1.77)

   ≥ $100,000

1,052

213 (20.2)

2.11 (1.60-2.79)

Place of residence

   

   Rural area

973

129 (13.3)

1

   Urban, population ≤ 499,999

1,976

247 (12.5)

0.93 (0.75-1.17)

   Urban, population ≥ 500,000

2,436

363 (14.9)

1.15 (0.92-1.43)

Immigrant mother

   

   No

4,334

559 (12.9)

1

   Yes

1,239

207 (16.7)

1.36 (1.12-1.64)

Marital status

   

   No partner

473

27 (5.7)

1

   Have a partner

5,105

743 (14.6)

2.79 (1.86-4.18)

Moms perceived health

   

   Excellent/very good

4,022

596 (14.8)

2.11 (1.30-3.43)

   Good

1,274

154 (12.1)

1.67 (0.99-2.80)

   Poor/Fair

304

23 (7.6)

1

Reaction when discovered pregnancy

   

   Very happy/happy

5,184

722 (13.9)

1

   Indifferent

238

27 (11.3)

0.78 (0.50-1.21)

   Very unhappy/Unhappy

164

21 (12.8)

0.89 (0.54-1.48)

Smoking during pregnancy

   

   No

4,982

740 (14.9)

3.15 (2.12-4.68)

   Yes

607

32 (5.3)

1

Alcohol drinking during pregnancy

   

   No

4,982

677 (13.6)

0.82 (0.64-1.06)

   Yes

586

94 (16.0)

1

Health problems during pregnancy

   

   No

4,232

610 (14.4)

1.23 (1.01-1.50)

   Yes

1,365

164 (12.0)

1

Support during pregnancy

   

   None/Little of time

289

37 (12.8)

0.92 (0.61-1.40)

   Some of the time

448

69 (15.4)

1.14 (0.86-1.52)

   Most/All of time

4,846

666 (13.7)

1

Attended prenatal classes

   

   No

3,770

520 (13.8)

1

   Yes

1,830

253 (13.8)

1.00 (0.85-1.18)

Prenatal care provider

   

   Non-physician

397

102 (25.7)

2.34 (1.81-3.02)

   Physician

5,175

668 (12.9)

1

Type of setting of baby's birth

   

   Hospital or clinic

5,485

728 (13.3)

1

   Birthing centre

43

7 (16.3)

1.22 (0.44-3.39)

   Private home

71

37 (52.1)

7.13 (4.24-11.98)

Type of delivery

   

   Vaginal

4,146

605 (14.6)

1.31 (1.08-1.58)

   Caesarean

1,456

168 (11.5)

1

Baby's admission to NICU

   

   No

4,875

711 (14.6)

1.83 (1.38-2.44)

   Yes

722

62 (8.6)

1

Baby's hospitalization after birth

   

   No

5,167

727 (14.1)

1.46 (1.03-2.07)

   Yes

432

44 (10.2)

1

Mother's work status <6 months of delivery

   

   No

5,084

715 (14.1)

1.30 (0.97-1.74)

   Yes

491

55 (11.2%)

1

Support after birth

   

   None/Little of time

322

61 (18.9)

1.50 (1.07-2.09)

   Some of the time

583

80 (13.7)

1.02 (0.77-1.33)

   Most/All of time

4,687

633 (13.5)

1

Province‡

   

   Eastern- Atlantic

323

28 (8.7)

1

   Eastern- Central

3,523

448 (12.7)

1.52 (1.21-1.91)

   Western- Prairies

1,056

163 (15.4)

1.89 (1.46-2.45)

   Western- British Columbia

668

128 (19.2)

2.46 (1.83-3.30)

   Northern territories

33

7 (21.2)

2.69 (2.06-3.53)

  

Unadjusted Mean difference§

(95% CI)

Mother's education level (years)

5,538

1.20 (0.97-0.43)

 

Age at first pregnancy (years)

5,527

1.88 (1.47-2.29)

 

Number of past pregnancies

5,581

0.16 (0.04-0.28)

 

Mother's age at selected birth (years)

5,581

2.04 (1.67-2.41)

 

Weight gained during pregnancy (Kg)

5,535

-0.41 (-0.94-0.12)

 

BMI before pregnancy (Kg/m2)

5,508

-0.90 (-1.31--0.48)

 

Infant's birth weight (grams)

5,590

44.39 (0.05-0.30)

 

Gestational age (weeks)

5,419

0.17 (0.95-87.84)

 

Number of stressful events

5,556

-0.23 (-0.33--0.12)

 

Number of prenatal visits

5,364

-0.07 (-0.41-0.27)

 

Edinburgh Postnatal Depression Scale

5,529

-0.28 (-0.63-0.08)

 
  1. * Sample size is estimated using normalized weights
  2. † 95% CI were calculated using bootstrapping technique
  3. ‡ Eastern Atlantic: Newfoundland & Labrador, Nova Scotia, Prince Edward Island & New Brunswick; Eastern Central: Quebec & Ontario; Western Prairies: Manitoba, Saskatchewan, & Alberta; Western British Columbia: British Columbia; and Northern Territories: Yukon Territory, Nunavut & Northwest Territories.
  4. §Represents the difference between the mean of exclusive breastfeeders and non- exclusive breastfeeders (Meanexclusive breastfeeders - Meannon-exclusive breastfeeders).