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Table 2 OCT-derived analysis of extent and morphology of calcification

From: Type 2 diabetes mellitus is associated with a lower fibrous cap thickness but has no impact on calcification morphology: an intracoronary optical coherence tomography study

 

Non DM (49)

DM (56)

p value

p value*

Microcalcifications (present, %)

10 (20.4)

11 (19.6)

NS

NS

Microcalcifications (n per lesion)

0.3 ± 0.7

0.3 ± 0.8

NS

NS

Spotty calcifications (present, %)

46 (93.9)

44 (78.6)

0.025

NS

Spotty calcifications (n per lesion)

2.4 ± 1.9

2.1 ± 1.8

NS

NS

Macrocalcifications (present, %)

34 (69.4)

46 (82.1)

NS

NS

Macrocalcifications (n per lesion)

1.5 ± 0.7

1.5 ± 1.1

NS

NS

Total no. of calcifications (n)

4.2 ± 3.1

4.0 ± 2.6

NS

NS

Superficial65 calcifications (n per lesion)

2.1 ± 2.1

1.9 ± 1.6

NS

NS

Superficial65 calcifications (% of total calcifications)

44.6 ± 33.8

49.4 ± 34.3

NS

NS

Superficial100 calcifications (n per lesion)

2.7 ± 2.6

2.4 ± 1.9

NS

NS

Superficial100 calcifications (% of total calcifications)

57.1 ± 36.1

59.8 ± 34.7

NS

NS

Mean calcium arc (°)

73.7 ± 31.6

82.3 ± 44.8

NS

NS

Mean thickness of calcification (mm)

0.5 ± 0.1

0.5 ± 0.1

NS

NS

Maximal thickness of calcification (mm)

0.9 ± 0.3

1.0 ± 0.3

NS

NS

Mean depth of calcification (µm)

160 ± 76

172 ± 192

NS

NS

Minimal depth of calcification (µm)

62 ± 61

50 ± 71

NS

NS

Mean calcified area (mm2)

0.8 ± 0.5

1.0 ± 0.7

0.085

NS

Maximum calcified area (mm2)

2.2 ± 1.8

2.8 ± 2.0

0.085

NS

Calcium length (mm)

12.2 ± 9.8

13.6 ± 8.9

NS

NS

Calcium index (° × mm)

1016 ± 958

1311 ± 1312

NS

NS

  1. The data are presented as mean ± SD or n (%). Abbreviations as in Table 1. Superficial65 and Superficial100 calcifications have a minimal depth of 65 and 100 μm, respectively, as defined in the “Methods” section. The data is displayed with p values; p values* are adjusted to the propensity score