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Table 2 Mean time between two events in years and number of patients observed by type of event, until the 4th event (median follow-up time = 7.2 years)

From: Factors associated with breast cancer recurrences or mortality and dynamic prediction of death using history of cancer recurrences: the French E3N cohort

 

Cancer- 1st event

1st- 2nd event

2nd- 3rd event

3rd- 4th event

TOTAL

End period event

Year (σ)

N (%)

Year (σ)

N (%)

Year (σ)

N (%)

Year (σ)

N (%)

Year (σ)

N (%)

Locoregional recurrence

4.1

276

3.4

47

1.8

6

2.2

7

4.9

343

 

(3.8)

(5.6)

(3.3)

(5.3)

(2.5)

(2.1)

(2.7)

(7.1)

(3.6)

(5.5)

Metastasis

4.4

281

1.5

185

0.9

90

0.5

29

2.7

603

 

(3.5)

(5.7)

(2.2)

(21.0)

(1.3)

(32.4)

(0.9)

(29.6)

(3.2)

(9.6)

Second primary breast cancer

5.6

329

3.4

50

2.6

6

2.3

2

5.3

388

 

(4.1)

(6.6)

(3.4)

(5.7)

(3.6)

(2.1)

(3.1)

(2.0)

(4.0)

(6.2)

Death

5.3

179

2.5

128

1.9

91

1.3

44

3.3

469

 

(3.3)

(3.6)

(2.3)

(14.6)

(1.9)

(32.9)

(1.4)

(44.9)

(3.0)

(7.5)

Censored

7.4

3861

5.1

464

3.3

84

2.3

16

7.1

4436

 

(4.7)

(78.4)

(3.9)

(53.1)

(2.9)

(30.3)

(2.7)

(16.3)

(4.7)

(71.1)

TOTAL

7.0

4926

3.8

874

2.0

277

1.3

98

6.1

6239

 

(4.7)

(100%)

(3.6)

(100%)

(2.3)

(100%)

(1.8)

(100%)

(4.7)

(100%)

  1. σ = standard error