Table 1 Annual crude prevalence of pregnancy loss and distributions of operationally defined pregnant cases according to age and income levels between 2008 and 2014

Pregnant case

575,382

568,250

618,290

592,007

572,010

517,180

497,901

Pregnancy loss

78,955

(13.7)

78,178

(13.8)

88,119

(14.3)

86,359

(14.6)

87,418

(15.3)

85,051

(16.5)

87,047

(17.5)

Age (years)

 20–24

48,486

(8.4)

42,626

(7.5)

45,055

(7.3)

41,132

(7.0)

38,409

(6.7)

34,585

(6.7)

32,426

(6.5)

 25–29

245,572

(42.7)

240,443

(42.3)

240,601

(38.9)

218,149

(36.9

189,836

(33.2)

158,018

(30.6)

141,541

(28.4)

 30–34

212,035

(36.9)

210,646

(37.1)

243,981

(39.5)

243,793

(41.2)

252,410

(44.1)

236,803

(45.8)

235,983

(47.4)

 35–39

59,794

(10.4)

64,083

(11.3)

75,969

(12.3)

76,053

(12.9)

76,989

(13.5)

74,209

(14.4)

73,782

(14.8)

 40–44

8914

(1.6)

9826

(1.7)

12,037

(2.0)

12,154

(2.1)

13,666

(2.4)

12,850

(2.5)

13,442

(2.7)

 45–49

581

(0.1)

626

(0.1)

647

(0.1)

726

(0.1)

700

(0.1)

715

(0.1)

727

(0.2)

Income^b

 Q0 (lowest)

4202

(0.7)

4378

(0.8)

5028

(0.8)

4654

(0.8)

4271

(0.8)

3456

(0.7)

3063

(0.6)

 Q1

110,516

(19.2)

108,177

(19.0)

116,866

(18.9)

106,348

(18.0)

99,512

(17.4)

88,434

(17.1)

82,476

(16.6)

 Q2

163,980

(28.5)

160,661

(28.3)

179,220

(29.0)

167,838

(28.4)

156,689

(27.4)

140,627

(27.2)

135,528

(27.2)

 Q3

193,465

(33.6)

193,068

(34.0)

209,500

(33.9)

204,715

(34.6)

202,021

(35.3)

184,480

(35.7)

178,350

(35.8)

 Q4 (highest)

103,219

(17.9)

101,966

(17.9)

107,676

(17.4)

108,452

(18.3)

109,517

(19.2)

100,183

(19.4)

98,484

(19.8)