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Table 1 Case distribution by region and year

From: A Nation-Wide multicenter 10-year (1999-2008) retrospective clinical epidemiological study of female breast cancer in china

Year

North

North-East

Central

South

East

North-West

South-West

Total

 

N*

n**(%)

N*

n**(%)

N*

n**(%)

N*

n**(%)

N*

n**(%)

N*

n**(%)

N*

n**(%)

N*

n**(%)

2008

1649

91(5.5)

1632

82(5.0)

647

73(11.3)

782

75(9.6)

1400

81(5.8)

894

45(5.0)

508

50(9.8)

7512

497(6.6)

2007

1390

110(7.9)

1486

134(9.3)

532

66(12.4)

835

74(8.9)

1262

83(6.6)

458

51(11.1)

404

50(12.4)

6367

568(8.9)

2006

1208

87(7.2)

1377

95(6.9)

368

60(16.3)

781

53(6.8)

1144

68(5.9)

215

49(22.8)

357

50(14.0)

5450

462(8.5)

2005

1108

60(5.4)

1195

75(6.3)

330

55(16.7)

734

59(8.0)

1008

58(5.8)

465

49(10.5)

356

50(14.0)

5196

406(7.8)

2004

902

50(5.5)

1152

96(8.3)

340

51(15.0)

620

53(8.6)

1065

64(6.1)

313

53(16.9)

322

50(15.5)

4714

417(8.9)

2003

715

50(7.0)

1097

78(7.1)

294

49(16.7)

527

59(11.2)

875

52(5.9)

179

53(29.6)

265

49(18.5)

3952

390(9.9)

2002

764

41(5.4)

1044

51(4.9)

227

46(20.3)

397

58(14.6)

593

51(8.6)

157

44(28.0)

207

50(24.2)

3389

341(10.1)

2001

681

52(7.6)

982

74(7.5)

144

46(31.9)

374

58(15.5)

545

50(9.2)

153

47(30.7)

380

50(13.2)

3259

377(11.6)

2000

587

50(8.5)

874

52(6.0)

106

48(45.3)

289

55(19.0)

461

50(10.9)

136

45(33.1)

318

50(15.7)

2771

350(12.6)

1999

532

50(9.4)

831

95(11.4)

139

52(37.4)

298

60(20.1)

392

49(12.5)

156

47(30.1)

242

50(20.7)

2590

403(15.6)

Total

9536

641(6.7)

11670

832(7.1)

3127

546(17.5)

5637

604(10.7)

8745

606(6.9)

3126

483(15.5)

3359

499(14.9)

45200

4211(9.3)

  1. N* number of the actual breast cancer visits each year from year 1999-2008;
  2. n** number of breast cancer cases collected per protocol.