Table 1 Characteristics of cases and controls. Represented as count and percent of subgroup (N, %) or as median and interquartile range (IQR). P value determined McNemar chi-squared test, or paired samples t test using natural log transformed measures

57 (53 %)

43.4–63.2

109 (51 %)

57.1–43.8

0.634

11.81

6.1–17.9

12.12

6.1–18.3

0.001

11.4–12.2

11.7–12.6

24.4

14.6–62.1

21.9

10.8–45.4

0.004

24.3–26.5

22.7–24.4

7.30

3.3–16.5

6.80

2.7–14.7

0.001

7.2–7.9

6.7–7.1

54.7

25.7–85.1

56.2

3.6–85.5

0.398

53.4–56.1

54.7–57.5

30.9

9.0–65.6

30.8

12.0–54.8

0.797

30.4–32.8

30.2–35.5

1.3

0.5–6.3

1.5

0.3–17.0

0.273

1.4–1.6

1.5–1.9

4.1

0.3–22.3

2.7

0.1–27.2

0.002

4.8–5.6

3.3–4.2

1.12

0.35–17.2

1.07

0.36–74.4

0.254

2.0–2.8

1.4–3.5

213

3.0–4473

89

2.0–2676

0.001

382.6–573.9

169.1–271.0

24 (22 %)

14.4–30.1

11 (5 %)

2.2–8.0

0.001

34 (32 %)

22.7–40.2

17 (8 %)

4.3–11.5

0.001

29 (27 %)

18.5–35.2

28 (13 %)

8.5–17.4

0.001

40 (37 %)

27.9–46.1

39 (18 %)

12.9–23.2

0.001

30 (28 %)

19.3–36.2

13 (6 %)

2.8–9.2

0.001

66 (61 %)

51.9–70.3

61 (28 %)

22.2–34.2

0.001

38 (36 %)

26.2–44.2

65 (32 %)

24.0–36.2

0.444