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Table 3 Serum cytokine marker associations with nasopharyngeal carcinoma (NPC) in the case–control and nested case–control studies

From: Decreased macrophage inflammatory protein (MIP)-1α and MIP-1β increase the risk of developing nasopharyngeal carcinoma

Marker

Case–control study (cases)a

Nested case–control study (cases)

NPC patients

Controls

OR1 (95% CI)

OR2 (95% CI)

OR3 (95% CI)

NPC patients

Controls

OR1 (95% CI)

OR2 (95% CI)

OR3 (95% CI)

EGF

 Category 1

84

37

Reference

Reference

Reference

19

30

Reference

Reference

Reference

 Category 2

38

37

0.45 (0.25–0.82)

0.40 (0.20–0.78)

0.39 (0.20–0.76)

17

33

0.83 (0.35–1.95)

1.18 (0.31–4.55)

1.17 (0.28–4.85)

 Category 3

20

37

0.24 (0.12–0.46)

0.29 (0.14–0.60)

0.30 (0.14–0.62)

11

28

0.63 (0.26–1.54)

0.85 (0.24–2.92)

0.87 (0.22–3.43)

 Category 4

8

37

0.10 (0.04–0.22)

0.09 (0.04–0.24)

0.09 (0.04–0.24)

13

29

0.71 (0.29–1.73)

0.46 (0.11–1.90)

0.62 (0.14–2.77)

P trend

  

< 0.001

< 0.001

< 0.001

  

0.383

0.199

0.434

Eotaxin

 Category 1

51

37

Reference

Reference

Reference

15

30

Reference

Reference

Reference

 Category 2

37

37

0.73 (0.39–1.35)

0.59 (0.29–1.19)

0.62 (0.30–1.25)

15

31

0.97 (0.43–2.21)

1.08 (0.35–3.30)

1.01 (0.31–3.21)

 Category 3

32

37

0.63 (0.33–1.18)

0.60 (0.29–1.22)

0.62 (0.30–1.27)

18

29

1.24 (0.53–2.89)

1.22 (0.36–4.12)

1.05 (0.29–3.84)

 Category 4

30

37

0.59 (0.31–1.12)

0.50 (0.24–1.03)

0.53 (0.25–1.10)

12

30

0.80 (0.32–2.01)

1.07 (0.34–3.34)

1.06 (0.30–3.74)

P trend

  

0.101

0.072

0.103

  

0.733

0.894

0.921

GCSF

 Category 1

57

39

Reference

Reference

Reference

14

31

Reference

Reference

Reference

 Category 2

52

31

1.15 (0.63–2.10)

1.29 (0.65–2.54)

1.36 (0.68–2.73)

11

33

0.68 (0.26–1.81)

1.05 (0.25–4.42)

1.14 (0.26–5.08)

 Category 3

23

35

0.45 (0.23–0.88)

0.39 (0.18–0.84)

0.39 (0.18–0.86)

13

24

1.21 (0.51–2.88)

2.47 (0.70–8.71)

1.91 (0.50–7.38)

 Category 4

11

34

0.22 (0.10–0.49)

0.24 (0.10–0.59)

0.24 (0.10–0.58)

21

29

1.57 (0.65–3.80)

2.33 (0.66–8.22)

2.07 (0.53–8.02)

P trend

  

< 0.001

< 0.001

< 0.001

  

0.130

0.104

0.232

Fractalkine

 Category 1

105

60

Reference

Reference

Reference

19

39

Reference

Reference

Reference

 Category 2

33

83

0.23 (0.14–0.38)

0.25 (0.14–0.42)

0.25 (0.14–0.45)

13

32

0.79 (0.33–1.91)

1.47 (0.40–5.34)

1.23 (0.40–5.34)

 Category 3

     

19

32

1.44 (0.65–3.17)

2.52 (0.75–8.50)

3.44 (0.49–21.57)

P trend

       

0.244

0.145

0.119

IFN-γ

 Category 1

53

33

Reference

Reference

Reference

18

42

Reference

Reference

Reference

 Category 2

41

53

0.48 (0.27–0.87)

0.46 (0.23–0.90)

0.47 (0.24–0.92)

21

37

1.34 (0.63–2.86)

1.70 (0.53–5.45)

1.82 (0.52–6.32)

 Category 3

46

59

0.49 (0.27–0.87)

0.48 (0.25–0.92)

0.50 (0.26–0.96)

15

37

1.06 (0.46–2.42)

2.31 (0.69–7.68)

2.50 (0.68–9.18)

P trend

  

0.092

0.143

0.179

  

0.966

0.199

0.202

GRO

 Category 1

82

34

Reference

Reference

Reference

8

29

Reference

Reference

Reference

 Category 2

44

37

0.49 (0.27–0.89)

0.44 (0.23–0.86)

0.44 (0.23–0.86)

15

31

1.62 (0.61–4.31)

0.90 (0.23–3.48)

0.63 (0.14–2.84)

 Category 3

18

31

0.24 (0.12–0.49)

0.25 (0.11–0.54)

0.26 (0.12–0.57)

12

30

1.22 (0.41–3.65)

0.52 (0.12–2.34)

0.36 (0.07–1.76)

 Category 4

6

34

0.07 (0.03–0.19)

0.08 (0.03–0.21)

0.08 (0.03–0.21)

18

25

2.40 (0.96–6.04)

1.69 (0.50–5.76)

1.01 (0.26–3.87)

P trend

  

< 0.001

< 0.001

< 0.001

  

0.064

0.229

0.622

MDC

 Category 1

27

38

Reference

Reference

Reference

17

33

Reference

Reference

Reference

 Category 2

49

36

1.92 (1.00–3.69)

2.27 (1.08–4.75)

2.21 (1.06–4.63)

6

27

0.46 (0.16–1.33)

0.28 (0.06–1.18)

0.29 (0.07–1.22)

 Category 3

43

38

1.59 (0.82–3.08)

1.40 (0.67–2.96)

1.46 (0.69–3.07)

18

31

1.17 (0.51–2.72)

1.15 (0.35–3.76)

1.29 (0.36–4.59)

 Category 4

30

37

1.14 (0.57–2.27)

1.22 (0.56–2.65)

1.24 (0.57–2.71)

19

29

1.36 (0.55–3.36)

1.59 (0.45–5.69)

1.34 (0.35–5.06)

P trend

  

0.860

0.794

0.902

  

0.261

0.264

0.448

IL-1α

 Category 1

125

77

Reference

Reference

Reference

40

73

Reference

Reference

Reference

 Category 2

12

51

0.15 (0.07–0.29)

0.17 (0.08–0.37)

0.17 (0.08–0.37)

11

36

0.73 (0.34–1.56)

0.97 (0.38–2.48)

1.17 (0.43–3.17)

IL-7

 Category 1

76

69

Reference

Reference

Reference

29

82

Reference

Reference

Reference

 Category 2

48

37

1.18 (0.69–2.02)

0.85 (0.46–1.58)

0.85 (0.46–1.60)

26

35

2.01 (1.03–3.93)

1.32 (0.56–3.12)

0.99 (0.39–2.51)

 Category 3

19

37

0.47 (0.25–0.89)

0.40 (0.19–0.83)

0.40 (0.19–0.83)

     

P trend

  

0.018

0.014

0.014

     

IL-8

 Category 1

35

35

Reference

Reference

Reference

19

29

Reference

Reference

Reference

 Category 2

30

37

0.81 (0.41–1.59)

0.66 (0.31–1.41)

0.68 (0.32–1.45)

20

29

1.05 (0.46–2.42)

1.08 (0.29–3.92)

1.41 (0.36–5.53)

 Category 3

38

33

1.15 (0.60–2.23)

0.66 (0.31–1.43)

0.70 (0.32–1.52)

8

27

0.38 (0.13–1.09)

0.18 (0.04–0.96)

0.18 (0.03–1.08)

 Category 4

45

34

1.32 (0.69–2.53)

1.05 (0.51–2.18)

1.09 (0.52–2.28)

12

28

0.55 (0.21–1.44)

0.24 (0.04–1.33)

0.26 (0.04–1.83)

P trend

  

0.220

0.461

0.412

  

0.169

0.086

0.167

MCP-1

 Category 1

11

38

Reference

Reference

Reference

22

30

Reference

Reference

Reference

 Category 2

45

37

4.20 (1.89–9.35)

2.89 (1.20–6.92)

2.84 (1.19–6.80)

6

29

0.17 (0.04–0.65)

0.28 (0.06–1.35)

0.36 (0.07–1.94)

 Category 3

48

39

4.25 (1.92–9.40)

3.45 (1.46–8.18)

3.87 (1.62–9.25)

17

30

0.70 (0.30–1.68)

0.52 (0.15–1.77)

0.56 (0.16–1.99)

 Category 4

46

36

4.41 (1.98–9.83)

3.15 (1.32–7.56)

3.41 (1.42–8.19)

13

29

0.61 (0.24–1.53)

0.48 (0.14–1.71)

0.45 (0.12–1.73)

P trend

  

0.006

0.043

0.023

  

0.618

0.375

0.279

MIP-1α

 Category 1

83

66

Reference

Reference

Reference

20

31

Reference

Reference

Reference

 Category 2

34

42

0.64 (0.37–1.12)

0.58 (0.31–1.09)

0.60 (0.32–1.14)

14

29

0.81 (0.35–1.89)

0.92 (0.30–2.87)

0.73 (0.25–2.13)

 Category 3

33

42

0.63 (0.36–1.09)

0.48 (0.25–0.92)

0.49 (0.26–0.95)

21

30

1.15 (0.47–2.83)

1.33 (0.35–5.05)

1.24 (0.47–3.26)

 Category 4

     

5

30

0.29 (0.10–0.85)

0.16 (0.03–0.98)

0.13 (0.03–0.62)

P trend

  

0.132

0.034

0.045

  

0.020

0.025

0.009

MIP-1β

 Category 1

47

37

Reference

Reference

Reference

21

30

Reference

Reference

Reference

 Category 2

43

37

0.92 (0.49–1.69)

0.83 (0.41–1.65)

0.85 (0.42–1.70)

17

30

0.84 (0.38–1.85)

0.67 (0.23–1.96)

0.62 (0.20–1.88)

 Category 3

35

37

0.75 (0.40–1.40)

0.69 (0.34–1.40)

0.69 (0.34–1.41)

12

30

0.78 (0.34–1.76)

0.63 (0.20–2.03)

0.55 (0.15–2.02)

 Category 4

23

37

0.49 (0.25–0.96)

0.45 (0.21–0.97)

0.47 (0.22–1.00)

10

29

0.39 (0.16–0.99)

0.23 (0.06–0.91)

0.20 (0.04–0.94)

P trend

  

0.029

0.034

0.041

  

0.048

0.037

0.043

VEGF

 Category 1

35

39

Reference

Reference

Reference

15

31

Reference

Reference

Reference

 Category 2

34

34

1.11 (0.58–2.15)

0.88 (0.41–1.87)

0.81 (0.38–1.74)

8

29

0.62 (0.22–1.75)

0.46 (0.10–2.08)

0.42 (0.09–1.99)

 Category 3

27

36

0.84 (0.43–1.64)

0.85 (0.40–1.83)

0.84 (0.40–1.81)

23

30

1.61 (0.65–3.96)

0.73 (0.18–2.98)

0.58 (0.13–2.61)

 Category 4

44

36

1.36 (0.72–2.57)

1.25 (0.61–2.57)

1.26 (0.61–2.59)

13

29

0.97 (0.37–2.51)

0.78 (0.24–2.57)

0.67 (0.18–2.48)

P trend

  

0.366

0.433

0.391

  

0.821

0.926

0.784

  1. NPC nasopharyngeal carcinoma, OR 1 odds ratio computed using logistic regression adjusted for gender and age, OR 2 computed using logistic regression adjusted for gender, age, and anti-Epstein–Barr virus nuclear antigen-1 immunoglobulin A antibody (EBNA1/IgA), OR 3 computed using logistic regression adjusted for gender, age, salted fish consumption, family history, and EBNA1/IgA, CI confidence interval, Category 1 lower than the lower limit of detection among controls with less than three groups or the first quartile with four groups, Category 2 detectable level with two groups, lower than median detectable level among controls with three groups, or in the second quartile with four groups, Category 3 higher than the median detectable level with three groups or in the third quartile with four groups, Category 4 in the fourth quartile among controls, P trend computed using Wald statistic of regression model parameters for marker intracategory medians modeled as a continuous variable, EGF epidermal growth factor, GCSF granulocyte colony-stimulating factor, IFN-γ interferon gamma, GRO growth-regulated oncogene, MDC macrophage-derived chemokine, IL-1α interleukin-1 alpha, IL-7 interleukin-7, IL-8 interleukin-8, MCP-1 monocyte chemotactic protein-1, MIP-1α macrophage inflammatory protein-1 alpha, MIP-1β macrophage inflammatory protein-1 beta, VEGF vascular endothelial growth factor
  2. aSamples were excluded from the analysis process for the corresponding marker if the marker serum level of each sample exceeded three times the quartile range above the median