Table 4 Hazard ratios (HRs) of disease-free survival and mortality, and corresponding 95% of confidence intervals (CIs), according to histologic subtypes, among 1009 “Triple Negative” breast cancer. Sardinia, Italy 1994–2015

IBC-NST

1.00^b

1.00^b

1.00^b

1.00^b

Lobular

0.68 (0.33–1.39)

0.57 (0.26–1.24)

1.36 (0.79–2.33)

1.06 (0.50–2.25)

Apocrine

1.40 (0.76–2.60)

1.34 (0.71–2.49)

0.77 (0.64–1.76)

0.54 (0.17–1.73)

Adenoid cystic

1.85 (0.46–7.50)

1.20 (0.16–8.69)

–

–

Metaplastic

0.85 (0.40–1.83)

0.75 (0.34–1.64)

0.88 (0.39–2.01)

0.60 (0.18–1.96)

Medullary

0.13 (0.01–0.92)

0.12 (0.01–0.87)

0.30 (0.07–1.21)

0.42 (0.10–1.74)

Other

1.44 (0.67–3.09)

1.33 (0.61–2.89)

0.64 (0.20–2.04)

0.17 (0.02–1.28)