Table 3 Relative risks and 95% CIs for ipsilateral recurrence obtained in Cox Proportional Hazards Models. All models are stratified for randomisation arm in SweDCIS. ‘Other’ category denotes architectural distortion and galactography findings

From: Mammography casting-type calcification and risk of local recurrence in DCIS: analyses from a randomised study

 

All ipsilateral

Ipsilateral DCIS

Ipsilateral Invasive

Crushed stone-like calcificationa

Ref

 

Ref

 

Ref

 

Casting-type calcificationa

1.36

(0.79–2.35)

1.98

(1.08–3.65)

0.69

(0.30–1.62)

Powdery calcificationa

0.54

(0.24–1.24)

0.59

(0.19–1.80)

0.49

(0.17–1.40)

No calcificationa

0.65

(0.31–1.36)

0.09

(0.01–0.66)

1.30

(0.58–2.91)

Othera

0.62

(0.27–1.43)

0.34

(0.09–1.35)

0.96

(0.37–2.53)

Crushed stone-like calcificationb

Ref

 

Ref

 

Ref

 

Casting-type calcificationb

1.41

(0.81–2.45)

2.03

(1.09–3.76)

0.72

(0.31–1.71)

Powdery calcificationb

0.48

(0.21–1.11)

0.54

(0.18–1.64)

0.43

(0.15–1.22)

No calcificationb

0.67

(0.32–1.41)

0.09

(0.01–0.68)

1.35

(0.60–3.05)

Otherb

0.60

(0.26–1.40)

0.33

(0.08–1.32)

0.93

(0.35–2.48)

Crushed stone-like calcificationc

Ref

 

Ref

 

Ref

 

Casting-type calcificationc

1.05

( 0.56–1.95)

1.31

(0.64–2.66)

0.61

(0.24–1.53)

Powdery calcificationc

0.31

(0.12–0.82)

0.31

(0.09–1.14)

0.30

(0.10–0.94)

No calcificationc

0.60

(0.28–1.31)

0.08

(0.01–0.61)

1.23

(0.54–2.84)

Otherc

0.35

(0.12–0.99)

0.15

(0.03–0.77)

0.67

(0.21–2.09)

  1. aStratified on treatment (RT/control).
  2. bAdjusted for age (continuous) and stratified on treatment.
  3. cAdjusted for age (continuous), tumour size (grouped <15 mm, >15 mm, missing information) and margins and stratified on treatment.
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