Among women who had postpartum screening, the proportion receiving the OGTT changed over time.
A similar range was noted for screeners: for example, where nurses performed the screening, the proportion screened ranged from 5.5% to 99%.
In prevalence screening the proportion of screen detected cancers diagnosed at stage I (Dukes' A) was 46.5%, but this fell to 41% for first incidence screening and to 35% for second incidence screening.
These include the preparedness of GPs to engage in opportunistic screening, the proportion of eligible individuals who are willing to choose lifelong medication and their compliance with treatment.
The frequency of PSA screening, the proportion of patients evaluated by a urologist for elevated PSA, and the proportion who subsequently underwent biopsy did not differ significantly by exposure status (Table 1) [ 34].
In participants with mild nonproliferative retinopathy at first screen, the proportion with STDR at second or later screen declined from 21.6% in 2008 to 8.4% in 2011 (annual change −2.2%[95%% CI −3.3 to −1.0], P < 0.001).
The rate of subjects reporting having been screened (either individually or through screening programs), the rate of GPs systematically recommending CRC screening, the proportion of subjects screened undergoing FOBT, compared to endoscopy, as well as that of subjects having performed a test within the last two years, were all increased in departments where an organised screening program exists.
As lung screening diffuses into the community with less experienced radiologists evaluating screening images, the proportion of screens with diagnosed SIFs may grow.
With this approach, the exposure is close to the usual definition of screening coverage used by many screening programmes: the proportion of eligible women screened in the past five (or three) years.
Further, each strain has been used in synthetic lethal screens, and the proportion of tested mutations which are synthetic lethal or sick in a strain quantifies the strain's genetic robustness [9], [11].
