Table 3 Risks of first hospital admission according to ICD9–CM classification after date of diagnosis in CD subjects compared to matched references, stratified by first outcome occurrence (30–365 days after the index date/>365 days after the index date)^a

001–V89

281

5260

243

1095

4.28 (3.56–5.13)

964

27812

256

4820

1.58 (1.36–1.85)

001–139

18

5380

17

1221

4.38 (2.25–8.55)

55

35520

27

8176

2.23 (1.37–3.63)

140–239

8

5384

6

1226

2.88 (0.94–8.85)

6

35836

21

8459

1.72 (1.00–2.98)

240–279

12

5383

24

1216

8.37 (4.12–16.99)

84

35553

45

8112

2.42 (1.66–3.52)

280–289

7

5426

13

1309

--

16

35947

12

8392

2.70 (1.21–6.04)

290–319

12

5476

9

1272

--

48

35819

26

8394

2.26 (1.37–3.72)

320–389

32

5375

13

1224

1.83 (0.94–3.56)

82

35306

43

8190

2.26 (1.54–3.32)

390–459

2

5388

0

1229

--

27

36017

16

8537

2.99 (1.59–5.64)

460–519

66

5356

38

1213

2.62 (1.74–3.95)

281

32991

83

7550

1.34 (1.03–1.73)

520–579

30

5375

123

1156

18.96 (12.52–28.70)

190

34853

109

6690

3.07 (2.38–3.97)

580–629

23

5378

11

1226

1.92 (0.88–4.19)

71

35483

31

8307

1.95 (1.25–3.05)

630–679

1

5388

0

1229

--

45

36006

15

8578

1.57 (0.87–2.82)

680–709

6

5385

2

1228

0.81 (0.10–6.70)

49

35830

14

8493

1.27 (0.69–2.32)

710–739

12

5384

7

1226

2.32 (0.87–6.21)

92

35672

20

8490

0.70 (0.39–1.23)

740–779

21

5381

16

1220

3.39 (1.74–6.59)

69

35521

28

8262

1.80 (1.14–2.85)

780–799

16

5381

18

1220

5.43 (2.76–10.66)

67

35517

37

8193

2.33 (1.52–3.56)

800–999

1

5389

1

1229

5.00 (0.31–79.95)

166

36102

56

8611

1.33 (0.97–1.83)

V01–V89

15

5379

15

1223

4.18 (2.00–8.74)

43

35713

26

8245

2.50 (1.50–4.17)