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Table 3 Stratified Cox proportional hazard model analysis on the risk of diabetes for the nurses and non-nurses

From: The incidence risk of type 2 diabetes mellitus in female nurses: a nationwide matched cohort study

Variables

Non-nurses

Nurses

Adj. HR*

(Nurse:GP)

95 % CI

p -value

Total

Diabetes (N)

Diabetes (%)

Total

Diabetes (N)

Diabetes (%)

Total

55835

1750

3.13

55835

1498

2.68

0.84

0.79

0.90

<0.001

Age(y/o)

          
 

<35

36084

434

2.23

36099

428

2.24

0.97

0.85

1.11

0.628

 

35–44

14118

617

4.37

14103

519

3.68

0.82

0.73

0.92

<0.001

 

45–54

4775

563

11.79

4775

425

8.90

0.75

0.66

0.85

<0.001

 

55–64

673

104

15.45

673

93

13.82

0.85

0.64

1.13

0.260

 

65

185

32

17.30

185

33

17.84

0.98

0.60

1.62

0.943

Monthly salary(NT$)

          
 

17280

4693

176

3.75

4693

123

2.62

0.65

0.52

0.82

<0.001

 

17281 ~ 22800

6976

211

3.02

6976

183

2.62

0.84

0.69

1.03

0.089

 

22801 ~ 28800

9801

273

2.79

9801

212

2.16

0.77

0.64

0.92

0.004

 

28801 ~ 36300

10023

218

2.17

10038

217

2.16

0.97

0.81

1.18

0.779

 

36301 ~ 45800

13680

479

3.50

13686

421

3.08

0.86

0.76

0.99

0.030

 

45801 ~ 57800

8068

251

3.11

8068

225

2.79

0.93

0.78

1.12

0.433

 

57801

2594

142

5.47

2573

117

4.55

0.80

0.63

1.03

0.080

Urbanization of residence

 

Level 1

22883

695

3.04

19566

544

2.78

0.86

0.76

0.96

0.006

 

Level 2 & 3

25499

804

3.15

27086

702

2.59

0.84

0.76

0.93

<0.001

 

Level 4 & 5

5544

181

3.26

6668

182

2.73

0.85

0.69

1.05

0.133

 

Level 6 & 7

1909

70

3.67

2515

70

2.78

0.71

0.50

1.00

0.050

Other catastrophic illnesses

 

No

54530

1680

3.08

54653

1435

2.63

0.84

0.78

0.90

<0.001

 

Yes

1305

70

5.36

1182

63

5.33

0.93

0.66

1.31

0.667

CCI

 

3

30433

552

2.70

29795

454

2.10

0.82

0.73

0.93

0.002

 

4 ~ 6

15428

551

3.57

15753

492

3.12

0.87

0.77

0.98

0.026

 

7 ~ 9

6912

389

5.63

7164

345

4.82

0.85

0.74

0.99

0.030

 

10

3062

258

8.43

3123

207

6.63

0.80

0.66

0.96

0.015

  1. *The stratified Cox proportional hazards models have controlled for age, monthly salary, urbanization of residence, other catastrophic illnesses, CCI
  2. CCI, Charlson Comorbidity Index; HR, hazard ratio; CI, confidence interval
  3. It’s 30 New Taiwan Dollar (NT$) per US dollar
  4. p -value was considered significant at p < 0.05