Investigators enrolled 40 diabetics without eye disease in a cohort (follow-up) study. The results of the first 3 years were as follows: Year 1:0 cases of eye disease detected out of 32; 8 lost to follow-up Year 2: 2 new cases of eye disease detected out of 28; 2

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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14:58 bip O
O₂
اس اس 0
Investigators enrolled 40
diabetics without eye disease
in a cohort (follow-up) study.
The results of the first 3 years
were as follows:
Year 1:0 cases of eye disease
detected out of 32; 8 lost to
follow-up
Year 2: 2 new cases of eye
disease detected out of 28; 2
had died; 10 lost to follow-up
Year 3: 3 new cases of eye
disease detected out of 14; 2
more had died; 5 more lost to
follow-up
The person-time incidence
rate is calculated as:
Select one:
O a.
5/65
O b. 5/72
O c. 5/85
O d. 5/90
Transcribed Image Text:14:58 bip O O₂ اس اس 0 Investigators enrolled 40 diabetics without eye disease in a cohort (follow-up) study. The results of the first 3 years were as follows: Year 1:0 cases of eye disease detected out of 32; 8 lost to follow-up Year 2: 2 new cases of eye disease detected out of 28; 2 had died; 10 lost to follow-up Year 3: 3 new cases of eye disease detected out of 14; 2 more had died; 5 more lost to follow-up The person-time incidence rate is calculated as: Select one: O a. 5/65 O b. 5/72 O c. 5/85 O d. 5/90
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