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Table 2 Cox proportional hazards regression analysis for any and exclusive breastfeeding (N = 132)

From: The effect of a breastfeeding support programme on breastfeeding duration and exclusivity: a quasi-experiment

 

Any Breastfeeding

Exclusive breastfeeding

Hazard ratio

95% CI

Hazard ratio

95% CI

Intervention

 BSP

0.340***

[0.188,0.614]

.458***

[0.291,0.720]

 Control

Reference category

   

Social support artificial feeding

1.361*

[1.013,1.829]

1.195

[0.931,1.532]

Perceived control breastfeeding (1–5)

0.872

[0.627,1.212]

.741*

[0.585,0.938]

Expected difficulty breastfeeding in various situations (1–5)

1.114

[0.761,1.631]

.935

[0.736,1.189]

First-time mother

 No

5.206***

[2.424,11.183]

1.124

[0.673,1.877]

 Yes

Reference category

   

Total months of breastfeeding experience

0.854***

[0.784,0.929]

.970*

[0.941,0.999]

How many hours the mother plans to work per week after the baby is born

1.003

[0.979,1.027]

.999

[0.982,1.017]

Education level mother

 Low-medium

.871

[0.421,1.802]

1.094

[0.666,1.798]

 High

Reference category

 

Reference category

 

Education level partner

 Low-medium

.936

[0.504,1.737]

1.037

[0.687,1.566]

 High

Reference category

 

Reference category

 

Asthma mother

 Yes

.567

[0.130,2.463]

1.443

[0.693,3.005]

 No

Reference category

 

Reference category

 

Country of origin mother (% not the Netherlands)

 The Netherlands

.657

[0.228,1.890]

.483

[0.214,1.091]

 Not the Netherlands

Reference category

 

Reference category

 
  1. Log Likelihood Test for Any Breastfeeding: χ2(1) = 39.96, p < .001
  2. Log Likelihood Test for Exclusive Breastfeeding: χ2(1) = 28.92, p = .002
  3. Significance levels: * p = < .05, ** p = < .01, *** p = < .001