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Table 3 Excerpt from example data in semi-expanded format for case crossover conditional logistic analysis

From: Conditional Poisson models: a flexible alternative to conditional logistic case cross-over analysis

Stratum

Case-con set

Date

Ozone

Temp-erature

Case day

Weight

2002 1 Sun

2002 1 Sun 1

06 jan 2002

2.4

7.1

1

198

2002 1 Sun

2002 1 Sun 1

13 jan 2002

17.6

8.2

0

198

2002 1 Sun

2002 1 Sun 1

20 jan 2002

49.9

8.9

0

198

2002 1 Sun

2002 1 Sun 1

27 jan 2002

42.5

10.5

0

198

2002 1 Sun

2002 1 Sun 2

06 jan 2002

2.4

7.1

0

204

2002 1 Sun

2002 1 Sun 2

13 jan 2002

17.6

8.2

1

204

2002 1 Sun

2002 1 Sun 2

20 jan 2002

49.9

8.9

0

204

2002 1 Sun

2002 1 Sun 2

27 jan 2002

42.5

10.5

0

204

2002 1 Sun

2002 1 Sun 3

06 jan 2002

2.4

7.1

0

167

2002 1 Sun

2002 1 Sun 3

13 jan 2002

17.6

8.2

0

167

2002 1 Sun

2002 1 Sun 3

20 jan 2002

49.9

8.9

1

167

2002 1 Sun

2002 1 Sun 3

27 jan 2002

42.5

10.5

0

167

2002 1 Sun

2002 1 Sun 4

06 jan 2002

2.4

7.1

0

169

2002 1 Sun

2002 1 Sun 4

13 jan 2002

17.6

8.2

0

169

2002 1 Sun

2002 1 Sun 4

20 jan 2002

49.9

8.9

0

169

2002 1 Sun

2002 1 Sun 4

27 jan 2002

42.5

10.5

1

169

2002 1 Mon

2002 1 Mon 1

07 jan 2002

4.1

5.2

1

180

2002 1 Mon

2002 1 Mon 1

14 jan 2002

18.7

9.3

0

180

2002 1 Mon

2002 1 Mon 1

21 jan 2002

38.1

10.8

0

180

2002 1 Mon

2002 1 Mon 1

28 jan 2002

56.1

10.3

0

180

. . . .