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Table 7 Fall-specific characteristics for total events, number of subjects at risk, total follow-up in days, and crude rate ratios, as indicated by the marginal and conditional total time models

From: On reporting results from randomized controlled trials with recurrent events

Conditional model

 

Control

Intervention

 

Event

# events

# at risk

follow-up

rate*

# events

# at risk

follow-up

rate*

crude RR†

fall 1

228

250

34,355

6.64

202

250

44,726

4.52

0.68

fall 2

180

228

24,361

7.39

104

202

30,264

3.44

0.47

fall 3

122

180

14,641

8.33

45

104

10,500

4.29

0.51

fall 4

77

122

9,673

7.96

18

55

4,301

4.19

0.53

Marginal model

 

Control

Intervention

 

Event

# events

# at risk

follow-up

rate*

# events

# at risk

follow-up

rate*

crude RR†

fall 1

228

250

34,355

6.64

202

250

44,726

4.52

0.68

fall 2

180

250

58,716

3.07

104

250

74,990

1.39

0.45

fall 3

122

250

73,357

1.66

45

250

85,490

0.53

0.32

fall 4

77

250

83,030

0.93

18

250

89,791

0.20

0.22

  1. * fall rate measured per 1000 person-days
  2. † RR = rate ratio