Table 2 Left: mean dose (air kerma ± standard error) in front of (outside dose) and behind thyroid protection (inside dose), groups L = large, M = medium, S = small; measured values for 1× CC and 1× MLO left breast. Right: Results of ANOVA and Tukey’s range test. Measured values for one craniocaudal view and one mediolateral oblique view of the left breast. Left: paired t-test. Right: ANOVA and Tukey’s range test
Group | Outside dose (mGy) | Inside dose (mGy) | p value | Comparison | Outside dose p value | Inside dose p value |
|---|---|---|---|---|---|---|
All (n = 82) | 0.187 ± 0.011 | 0.016 ± 0.002 | < 0.001 | Overall | < 0.001 | 0.364 |
L-group (n = 27) | 0.249 ± 0.016 | 0.020 ± 0.004 | < 0.001 | L-group vs M-group | 0.019 | 0.813 |
M-group (n = 22) | 0.182 ± 0.019 | 0.017 ± 0.004 | < 0.001 | L-group vs S-group | < 0.001 | 0.332 |
S-group (n = 33) | 0.141 ± 0.014 | 0.013 ± 0.003 | < 0.001 | M-group vs S-group | 0.190 | 0.762 |