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Table 1 Distribution of cases and live births (LB) by cluster and according to geographical region of the country

From: Intraclass correlation coefficients in the Brazilian network for surveillance of severe maternal morbidity study

Region

Center

nc(or xα#)

LB in the network

LB in Brazil*

Southeast n se = 2,794 (29.2%)

1

48

37,865 (46.1%)

1,130,407 (38.5%)

2

59

3

66

4

74

5

96

6

112

7

154

8

155

9

172

10

186

11

253

12

369

13

1050

Northeast n ne = 5,148 (53.9%)

1

118

33,172 (40.4%)

888,268 (30.3%)

2

210

3

263

4

281

5

294

6

465

7

566

8

920

9

945

10

1086

South n s = 939 (9.8%)

1

98

4,532 (5.5%)

371,497 (12.7%)

2

841

Midwest n mw = 609 (6.4%)

1

609

2,527 (3.1%)

222,658 (7.6%)

North n n = 65 (0.7%)

1

65

4,048 (4.9%)

321,998 (11.0%)

Total (n)

27

9555

82,144

2,934,828

  1. Mean cluster size (na)= 354.
  2. #Denominator of the expression of the ratio estimator.
  3. *Data from SINASC (Brazil, 2011) [16].