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Table 2
Mean values of dose rate to the right and left lens in each clinic and P values of the student’s t test done to determine if there were statistically significant differences between the dose rate means to right and left crystalline (received by the hemodynamist) in institution 1, and institution 2.
| Institution | Number of procedures | Cases | Dose rate [μSv/min] | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Right eye | Left eye | |||||||||
| Mean ± SD | P value | Min | Max | Mean ± SD | P value | Min | Max | |||
| 1 | 184 | Diagnoses + Therapeutics | 38.8 ± 37.3 | 6.33E-05 | 3.3 | 310.8 | 49.9 ± 44.6 | 1.35E-05 | 5.7 | 315.4 |
| 2 | 43 | 22.1 ± 19.3 | 2.6 | 79.2 | 28.3 ± 22.7 | 4.3 | 94.5 | |||
| 1 | 93 | Diagnoses | 55.6 ± 42.8 | 4.86E-03 | 8.4 | 310 | 70.9 ± 49.5 | 2.74E-03 | 13.9 | 315.4 |
| 2 | 13 | 36.3 ± 17.0 | 19 | 79.2 | 46.4 ± 20.4 | 19.8 | 94.5 | |||
| 1 | 76 | Therapeutics | 19.6 ± 7.2 | 5.85E-08 | 5 | 36.7 | 26.9 ± 13.9 | 2.26E-07 | 9 | 76.6 |
| 2 | 20 | 6.6 ± 3.5 | 2.6 | 18.3 | 10.0 ± 4.5 | 4.3 | 19.7 | |||
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