Table 1 Distribution of cigarette smoker characteristics

Total

437

53.1

386

46.9

  < 50

80

18.3

87

22.5

 50–59

191

43.7

194

50.3

 60–69

136

31.1

84

21.8

  > =70

30

6.9

21

5.4

 High (m:>  62.39–88.96)/(w:> 56.00–88.96)

85

19.5

71

18.4

 Intermediate (m:>  25.95–62.39)/(w:>  27.91–56.00)

249

57.0

231

59.8

 Low (m:> = 11.74–25.95)/(w:> = 11.74–27.91)

99

22.7

77

19.9

 Missing

4

0.9

7

1.8

 White collar

239

54.7

320

82.9

 Blue collar

192

43.9

59

15.3

 Missing

6

1.4

7

1.8

  > =18

34

7.8

24

6.2

 14–17

107

24.5

50

13.0

 11–13

262

60.0

256

66.3

  < =10

33

7.6

56

14.5

 Missing

1

0.2

0

0.0

Median

IQR^a

Median

IQR^a

Age [years]

56

51–63

54

50–60

Cigarettes per day

20

12–25

19

10–20

Cotinine [μg/L]^a

3652

2279–5422

3127

1692–4920

3OH-cotinine [μg/L]^a

6146

3521–10,524

4815

2418–9692

Sum of cotinine^a and 3OH-cotinine^a [μg/L]

10,093

6334–15,542

8257

4563–14,539

Ratio 3OH-cotinine^a/cotinine^a

1.80

1.26–2.53

1.77

1.18–2.62

Creatinine in urine [mg/L]

1280

860–1760

895

540–1315

Daytime of body fluid sampling^b [hours:minutes]

10:36

9:20–12:15

10:33

9:22–12:06

Body mass index [kg/m²]

27

25–29

26

23–29

Height [cm]

175

170–180

163

159–167

Weight [kg]

82

74–90

68

61–78

Last meal before sampling^b [hours]

12

4–14

12

4–14

Last coffee/tea consumption before sampling^b [hours]

6

4–13

5

4–14