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Table 1 Levels of inflammatory markers overall and by selected subgroups

From: Effects of particulate matter on inflammatory markers in the general adult population

  

hs-CRP (μg/mL)

IL-1β (pg/mL)

IL-6 (pg/mL)

TNF-α (pg/mL)

 

Subjects [n]

N

Median (P25-P75)

N

Median (P25-P75)

N

Median (P25-P75)

N

Median (P25-P75)

All subjects

6183

6171

1.30(0.60-2.70)

6083

0.39(0.10-1.74)

6077

1.32(0.58-3.21)

6077

2.87(1.79-4.50)

Sex

Female

3251(52.6)

3247

1.30(0.60-2.90)

3200

0.45(0.10-1.93)

3197

1.21(0.53-2.93)

3196

2.73(1.71-4.38)

Male

2932(47.4)

2924

1.20(0.60-2.60)

2883

0.34(0.10-1.52)

2880

1.46(0.65-3.53)

2881

3.03(1.89-4.62)

p-value

  

0.01

 

<0.01

 

<0.01

 

<0.01

Age (Years)

<55

3506(56.7)

3500

1.00(0.50-2.40)

3447

0.49(0.10-2.13)

3444

1.20(0.52-3.16)

3442

2.69(1.68-4.26)

> = 55

2677(43.3)

2671

1.60(0.80-3.20)

2636

0.29(0.10-1.32)

2633

1.46(0.68-3.27)

2635

3.13(1.99-4.82)

p-value

  

<0.01

 

<0.01

 

<0.01

 

<0.01

BMI

<25

2970(48.0)

2963

0.80(0.40-1.70)

2923

0.46(0.10-1.99)

2921

1.15(0.49-3.10)

2920

2.68(1.68-4.20)

> = 25

3213(52.0)

3208

1.90(0.90-3.80)

3160

0.35(0.10-1.52)

3156

1.46(0.69-3.34)

3157

3.09(1.90-4.79)

p-value

  

<0.01

 

<0.01

 

<0.01

 

<0.01

Smoking

No

4510(72.9)

4506

1.20(0.60-2.70)

4452

0.39(0.10-1.68)

4449

1.22(0.54-3.00)

4448

2.84(1.78-4.46)

Yes

1673(27.1)

1665

1.40(0.70-2.90)

1631

0.42(0.10-1.99)

1628

1.57(0.75-3.76)

1629

2.99(1.86-4.78)

p-value

  

<0.01

 

0.07

 

<0.01

 

<0.01

Diabetes

No

5764(93.2)

5764

1.20(0.60-2.60)

5680

0.41(0.10-1.79)

5675

1.29(0.57-3.16)

5674

2.84(1.78-4.46)

Yes

407(6.8)

407

2.10(1.00-4.50)

402

0.15(0.10-0.97)

401

1.87(0.90-3.78)

402

3.52(2.20-5.35)

p-value

  

<0.01

 

<0.01

 

<0.01

 

<0.01

Hypertension

No

3960(47.9)

3953

1.10(0.50-2.30)

3895

0.46(0.10-1.95)

3893

1.19(0.52-3.08)

3891

2.72(1.69-4.29)

Yes

2223(52.1)

2218

1.80(0.90-3.60)

2188

0.30(0.10-1.42)

2184

1.54(0.71-3.45)

2186

3.17(2.04-4.92)

p-value

  

<0.01

 

<0.01

 

<0.01

 

<0.01

Alcohol

No

4613(74.6)

4606

1.20(0.60-2.70)

4541

0.42(0.10-1.83)

4536

1.27(0.55-3.10)

4536

2.84(1.78-4.50)

Yes

1567(25.4)

1567

1.40(0.70-2.70)

1540

0.34(0.10-1.58)

1539

1.48(0.66-3.54)

1539

2.96(1.84-4.60)

p-value

  

<0.01

 

<0.01

 

<0.01

 

0.11

  1. Note: by Wilcoxon rank sum test.