Table 2: Descriptive statistics of dose quantities ESD and DAP in the hospitals.
|
Descriptive Statistics |
H1 |
H2 |
H3 |
H4 |
||||||||
|
ESD (mGy) |
Number of Films used |
DAP (Gy.cm2) |
ESD (mGy) |
Number of Films used |
DAP (Gy.cm2) |
ESD (mGy) |
Number of Films used |
DAP (Gy.cm2) |
ESD (mGy) |
Number of Films used |
DAP (Gy.cm2) |
|
|
Mean |
10.1 |
6.5 |
32.0 |
5.5 |
5.3 |
13.7 |
10.6 |
5.6 |
32.9 |
8.2 |
6.9 |
20.3 |
|
Std. deviation |
2.4 |
- |
9.9 |
3.0 |
- |
6.7 |
3.4 |
- |
11.3 |
2.4 |
- |
5.7 |
|
Minimum |
6.0 |
5 |
18.9 |
2.7 |
4 |
6.5 |
5.9 |
5 |
20.8 |
3.9 |
6 |
12.0 |
|
1st quartile |
8.0 |
- |
25.9 |
3.4 |
- |
9.4 |
8.1 |
- |
23.4 |
6.4 |
- |
15.9 |
|
Median |
9.9 |
- |
28.8 |
3.9 |
- |
11.4 |
9.0 |
- |
28.4 |
8.6 |
- |
18.7 |
|
3rd quartile |
10.9 |
- |
34.9 |
6.6 |
- |
16.2 |
12.9 |
- |
41.1 |
9.5 |
- |
24.6 |
|
Maximum |
14.5 |
9 |
66.0 |
16.5 |
8 |
40.8 |
18.0 |
9 |
58.5 |
14.9 |
9 |
35.8 |
|
Max/Min |
2.4 |
1.8 |
3.5 |
6.1 |
2 |
6. 3 |
3.1 |
1.8 |
2.8 |
3.8 |
0.7 |
3 |