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Table 4 Model for logistic regression of specific Baby-Friendly practices (N = 421)

From: Effects of baby-friendly practices on breastfeeding duration in China: a case-control study

Independent variables

β

SE

Wald

df

P

OR (95% CI)

Child’s gender (base: boy)

0.246

0.220

1.255

1

0.263

1.279

(0.831,

1.968)

Child’s ethnicity (base: han)

0.444

0.321

1.912

1

0.167

1.559

(0.831,

2.926)

Delivery mode (base: natural delivery)

−0.533

0.246

4.712

1

0.030

0.587

(0.363,

0.950)

Mother’s age

0.085

0.045

3.550

1

0.060

1.089

(0.997,

1.190)

Mother’s education level (base: completed junior high school or less)

−0.141

0.152

0.857

1

0.355

0.869

(0.645,

1.170)

Father’s age

−0.029

0.035

0.681

1

0.409

0.972

(0.907,

1.041)

Father’s education level (base: completed junior high school or less)

0.004

0.140

0.001

1

0.975

1.004

(0.763,

1.323)

Family structure (base: nuclear family)

  

1.246

2

0.536

   

 Extended family

0.403

1.091

0.136

1

0.712

1.496

(0.176,

12.700)

 Single-parent / reconstituted family

0.638

1.083

0.347

1

0.556

1.892

(0.226,

15.819)

Per capita monthly income (base: < 435 USD)

−0.051

0.092

0.310

1

0.578

0.950

(0.793,

1.138)

Single-child family (base: no)

−0.430

0.271

2.513

1

0.113

0.650

(0.382,

1.107)

Location of hospital (base: Site A)

  

17.056

3

0.001

   

 Site B

−0.418

0.345

1.471

1

0.225

0.658

(0.335,

1.294)

 Site C

−0.082

0.348

0.055

1

0.814

0.921

(0.466,

1.821)

 Site D

−1.827

0.455

16.118

1

0.000

0.161

(0.066,

0.393)

BFHI practices

 Q 1: recommending formula sample (base: no)

−1.079

0.703

2.352

1

0.125

0.340

(0.086,

1.350)

 Q2: standard skin-to-skin contact (base: yes)

0.019

0.255

0.006

1

0.939

1.020

(0.618,

1.682)

 Q 3: providing breastfeeding information (base: yes)

−0.193

0.790

0.060

1

0.807

0.824

(0.175,

3.879)

 Q 4: breastfeeding within 1 h after birth (base: yes)

0.284

0.268

1.118

1

0.290

1.328

(0.785,

2.247)

 Q 5: helping to learn how to breastfeeding (base: yes)

0.867

0.551

2.479

1

0.115

2.380

(0.809,

7.006)

 Q 6: feed other food or water (base: no)

0.134

0.261

0.262

1

0.608

1.143

(0.685,

1.907)

 Q 7: rooming-in (base: yes)

0.285

0.510

0.312

1

0.576

1.330

(0.489,

3.615)

 Q 8: breastfeeding on demand (base: yes)

0.817

0.297

7.566

1

0.006

2.263

(1.265,

4.049)

 Q 9: use a pacifier (base: no)

0.267

0.259

1.061

1

0.303

1.306

(0.786,

2.170)

 Q10: breastfeeding support (base: yes)

−0.367

0.235

2.433

1

0.119

0.693

(0.437,

1.099)

 Constant

−0.935

1.791

0.273

1

0.602

0.392

  
  1. Method: Enter, Model goodness of fit:-2 Likelihood =498.019, R squared = 0.150. X2 = 67.514, p < 0.001