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Table 7 Joint distribution of the number of phone calls per patient and the scores obtained

From: Predicting recovery at home after Ambulatory Surgery

Score

3

4

5

6

7

8

Total

First call

13

89

199

276

219

126

922

Second call

7

33

133

234

192

162

761

Third call

2

3

34

45

34

20

138

Fourth call

0

0

4

6

8

2

20

Fifth call

0

1

0

1

2

0

4

Sixth call

0

0

2

0

0

0

2

 

22

126

372

562

455

310

1847