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Table 5 Description of the results according to the FNAC* results

From: Statistical methods for evaluating the fine needle aspiration cytology procedure in breast cancer diagnosis

Characteristic

Negative (N = 771)a

Positive (N = 842)a

Suspect (N=154)a

Age (years)

50 (13)

61 (14)

57 (13)

Side

   

Right

373 (48%)

383 (45%)

71 (46%)

Left

398 (52%)

459 (55%)

83 (54%)

Size (mm)

15 (37)

28 (41)

17 (15)

ACR*

   

1

4 (1%)

1 (0.1%)

0 (0%)

2

97 (12.5%)

3 (0.4%)

0 (0%)

3

440 (57%)

13 (1.5%)

12 (8%)

4

188 (24.5%)

177 (21%)

62 (41%)

5

39 (5%)

643 (77%)

78 (51%)

Unknown

3

5

2

Echoguided

626 (81%)

342 (41%)

96 (62%)

Infiltrating canal carcinoma

22 (2.9%)

707 (84%)

98 (64%)

Unknown

2

0

0

Intracanalar carcinoma

8 (1.0%)

161 (19%)

33 (21%)

Infiltrating lobular carcinoma

9 (1.2%)

95 (11%)

20 (13%)

Lobular carcinoma in situ

5 (0.6%)

17 (2.0%)

8 (5.2%)

Disease status

   

Benign histology

115 (15%)

1 (0.1%)

31 (20%)

Malignant histology

24 (2.9%)

803 (95.5%)

120 (78%)

Benign follow-up

471 (61%)

0 (0%)

1 (0.5%)

Malignant follow-up

1 (0.1%)

12 (1.4%)

0 (0%)

Lost to follow-up

160 (21%)

26 (3%)

2 (1.5%)

  1. *FNAC fine needle aspiration cytology, *ACR american college of radiology
  2. aMean (SD); n (%)