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Table 3 Multivariate linear regression models for discomfort associated with DL

From: Tolerability of breast ductal lavage in women from families at high genetic risk of breast cancer

Multivariate linear
regression
Type of Data Anticipated DL discomfort
(n = 122) Model R2 = 0.00
  Experienced DL discomfort
(n = 95) Model R2 = 0.08
 
Step 1   β(SEβ) p β(SEβ) P
Age Continuous 0.14 (0.22) 0.53 -0.33(0.30) 0.27
History of breast cancer Yes
No
-0.45 (6.15)
Ref
0.94 -10.79 (8.01)
Ref
0.18
NAF obtained during
procedure
Yes
No
2.79 (4.55)
Ref
0.54 2.19 (5.79)
Ref
0.71
BSI GSI Continuous 0.11 (0.20) 0.59 0.57 (0.27) < 0.05
Step 2      
Anticipated DL discomfort Continuous n/a n/a 0.09 (0.12) 0.48
BSI GSI Continuous n/a n/a 0.50 (0.28) 0.08