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Table 1 Baseline characteristics of study population according to IL8 quartiles

From: Serum IL8 is not associated with cardiovascular events but with all-cause mortality

 

IL8 Q1

(IL8 ≤ 8.7 pg/ml)

IL8 Q2

(IL8 > 8.7 ≤ 11.9 pg/ml)

IL8 Q3

(IL8 > 11.9 ≤ 17.3 pg/ml)

IL8 Q4

(IL8 > 17.3 pg/ml)

Male/Female

438/563

426/576

482/522

595/409

SBP (mmHg)

134 (121–150)

137 (122–152)

136 (123–152)

137 (123–152)

DBP (mmHg)

83 (76–90)

83 (76–91)

83 (76–91)

84 (77–91)

Anthropometric measures

 BMI(kg/cm2)

26 (24–29)

26 (24–29)

26 (24–29)

26 (24–29)

 Waist/hip ratio

0.8 (0.8–0.9)

0.8 (0.8–0.9)

0.9 (0.8–0.9)

0.9 (0.8–1.0)

Life style factors (%)

 Physical activity at work

  Low

312 (24)

321 (25)

338 (26)

312 (24)

  Medium

212 (24)

225 (25)

213 (24)

225 (25)

  Medium high

227 (24)

236 (25)

230 (25)

233 (25)

  High

210 (24)

205 (24)

220 (26)

209 (25)

 Physical activity during leisure time

  Low

100 (22)

123 (27)

111 (24)

121 (27)

  Medium

594 (26)

569 (25)

570 (25)

565 (25)

  Medium high

220 (24)

225 (25)

239 (26)

220 (24)

  High

62 (21)

75 (25)

85 (28)

73 (25)

 Alcohol consumption (g/day)

7.8 (2.2–15.2)

8.0 (2.2–17.6)

8.1 (2.7–16.8)

10.2 (4.2–21.1)

Cardiovascular risk factors (%)

 Smoking

530 (22)

594 (25)

608 (25)

647 (27)

 Diabetes

19 (14)

36 (26)

41 (30)

43 (31)

 Hypertension

193 (24)

181 (23)

218 (27)

197 (25)

 Hypercholesterolemia

39 (18)

46 (22)

66 (31)

61 (29)

 Central obesity

487 (23)

505 (24)

539 (25)

585 (27)

Biochemical markers (mmol/L)

 Cholesterol

6.0 (5.3–6.6)

6.0 (5.3–6.7)

6.0 (5.3–6.7)

6.0 (5.3–6.7)

 LDL-cholesterol

3.9 (3.3–4.5)

3.8 (3.3–4.5)

3.9 (3.3–4.5)

3.8 (3.2–4.4)

 Glucose

5.2 (4.8–5.6)

5.2 (4.8–5.6)

5.2 (4.8–5.7)

5.2 (4.9–5.7)

  1. Continuous variables are presented as median and interquartile range. Abbreviations: SBP: systolic blood pressure; DBP: diastolic blood pressure; BMI body mass index, LDL low density lipoproteins, CVE cardiovascular events. Missing values: SBP and DBP, n = 3; waist/hip ratio, n = 2; physical activity at work, n = 83; physical activity leisure time, n = 59; smoking, n = 57; alcohol consumption, n = 1; LDL, n = 47