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Table 3 Incidence rate of high risk behavior by region of rural Sichuan province from 2011 to 2013a

From: Risk behavior in patients with severe mental disorders: a prospective study of 121,830 patients managed in rural households of western China

Region

2011

2012

2013

 

No. of high risk behaviors

Follow-up person years

Incidence rate (%)

No. of high risk behaviors

Follow-up person years

Incidence rate (%)

No. of high risk behaviors

Follow-up person years

Incidence rate (%)

Annual rate of changea

1 CD

1109

4031.33

27.51

1418

12,234.69

11.59

1061

13,743.52

7.72

−0.47

2 ZG

254

1691.39

15.02

160

5333.33

3.00

78

5492.96

1.42

−0.69

3 PZ

4

41.07

9.74

11

168.20

6.54

123

409.32

30.05

0.77

4 LZ

337

1280.08

26.33

235

4234.23

5.55

88

4378.11

2.01

−0.72

5 DY

751

2722.03

27.59

115

5066.08

2.27

272

4857.14

5.60

−0.55

6 MY

448

2370.25

18.90

334

6972.86

4.79

81

5625.00

1.44

−0.72

7 GY

468

807.15

57.98

590

2327.42

25.35

244

1788.86

13.64

−0.51

8 SN

123

1470.52

8.36

77

2851.85

2.70

27

1985.29

1.36

−0.60

9 NJ

337

2523.60

13.35

260

5816.55

4.47

44

4313.73

1.02

−0.72

10 LS

244

422.82

57.71

423

1696.07

24.94

327

2070.93

15.79

−0.48

11 NC

572

1460.63

39.16

505

3454.17

14.62

259

2273.92

11.39

−0.46

12 MS

88

1145.18

7.68

92

3076.92

2.99

57

3097.83

1.84

−0.51

13 YB

309

950.19

32.52

655

4428.67

14.79

269

4151.23

6.48

−0.55

14 GA

247

784.79

31.47

85

2537.31

3.35

71

1977.72

3.59

−0.66

15 DZ

172

710.48

24.21

287

3235.63

8.87

205

3005.87

6.82

−0.47

16 YA

52

137.49

37.82

18

640.57

2.81

15

595.24

2.52

−0.74

17 BZ

297

526.01

56.46

496

3167.31

15.66

1369

2669.14

51.29

−0.05

18 ZY

222

1977.65

11.23

183

7093.02

2.58

38

6440.68

0.59

−0.77

19 LY

11

218.03

5.04

197

693.91

28.39

16

465.12

3.44

−0.17

Total

6045

25,270.70

23.92

6141

74,981.68

8.19

4644

69,313.43

6.70

−0.47

  1. aAnnual rate of change==\( \sqrt[n]{a_n/{a}_0} \)-1