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Table 6 Predictors of anaemia among pregnant women

From: Prevalence, risk factors and associated adverse pregnancy outcomes of anaemia in Chinese pregnant women: a multicentre retrospective study

Variables

COR

95%CI

P-value

AOR

95%CI

P-value

Maternal age

 < 20y

3.312

1.322-8.297

0.011*

2.489

0.958-6.467

0.061

 20-35

1

  

1

  

 ≥ 35

1.382

1.113-1.717

0.003*

1.386

1.103-1.742

0.005*

Educational status

 College and above

1

  

  

 Junior or senior

0.705

0.222-2.237

0.553

  

 Primary or illiteracy

1.384

0.434-4.408

0.583

  

Cities

 Beijing

1

  

1

  

 Guangzhou

7.104

5.826-8.663

< 0.001*

7.293

5.455-9.751

< 0.001*

 Chengdu

2.540

2.144-3.008

< 0.001*

2.847

2.147-3.777

< 0.001*

Family per capita monthly income (RMB, CYN)

      

 < 1000

0.747

0.610-0.915

0.005*

1.671

1.291-2.162

< 0.001*

 1000-4999

0.995

0.842-1.176

0.956

1.157

0.968-1.382

0.109

 ≥ 5000

1

  

1

  

Residence

 Urban

1

  

1

  

 Rural

1.636

1.393-1.921

< 0.001*

1.308

1.095-1.563

0.003*

Pre-pregnancy BMI (kg/m2)

 < 18.5

1.302

1.081-1.567

0.005

1.237

1.021-1.498

0.030*

 18.5-23.99

1

  

1

  

 24-27.99

0.599

0.458-0.782

< 0.001*

0.662

0.506-0.867

0.003*

 ≥ 28

0.460

0.264-0.800

0.006*

0.506

0.283-0.906

0.022*

Parity

 0

1

  

1

  

 1-3

2.427

2.075-2.839

< 0.001*

1.071

0.842-1.363

0.576

 ≥ 4

7.162

3.400-15.089

< 0.001*

2.130

0.920-4.932

0.078

  1. COR Crude Odds Ratio, AOR Adjusted Odds Ratio, CI Confidence interval
  2. *P-value< 0.05 was statistically significant