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Table 1 The geographical and urban–rural-specific prevalence ratio of NTDs (per 10,000 births) in China, 2006-2008

From: Geographic and urban–rural disparities in the total prevalence of neural tube defects and their subtypes during 2006–2008 in China: a study using the hospital-based birth defects surveillance system

Region

Residential areas

 

Anencephaly

 

Spina bifida

 

Encephalocel

 

NTDs

  

Na

PRb (95% CI)

Na

PRb (95% CI)

Na

PRb (95% CI)

Na

PRb (95% CI)

North

Rural

429

10.8 (9.8-11.9)

597

15.0 (13.8-16.3)

152

3.8 (3.2-4.5)

1178

29.7 (28.0-31.4)

 

Urban

311

4.5 (4.0-5.1)

399

5.8 (5.3-6.4)

136

2.0 (1.7-2.3)

846

12.4 (11.5-13.2)

South

Rural

252

7.0 (6.2-8.0)

147

4.1 (3.5-4.8)

79

2.2 (1.8-2.7)

478

13.3 (12.214.6)

 

Urban

333

4.1 (3.7-4.5)

214

2.6 (2.3-3.0)

119

1.5 (1.2-1.7)

666

8.1 (7.5-8.8)

 

Rural

681

9.0 (8.4-9.7)

744

9.8 (9.2-10.6)

231

3.1 (2.7-3.5)

1656

21.9 (20.9-23.0)

 

Urban

644

4.3 (4.0- 4.6)

613

4.1 (3.8-4.4)

255

1.7 (1.5-1.9)

1512

10.1 (9.6-10.6)

North

 

740

6.8 (6.4-7.3)

996

9.2 (8.6-9.8)

288

2.7 (2.4-3.0)

2024

18.7 (17.9-19.5)

South

 

585

5.0 (4.6-5.4)

361

3.1 (2.8-3.4)

198

1.7 (1.5-1.9)

1144

9.7 (9.2-10.3)

  1. aThe number of NTDs affected cases.
  2. bPR=prevalence ratio.