Sentence examples for retrospectively ascertained from inspiring English sources

As described previously [5], study limitations may include potential survival bias as the supplemental cases identified in Guanacaste were retrospectively ascertained and DNA was not obtained for deceased cases.

The study retrospectively ascertained information using a questionnaire.

Definitions of prenatal or perinatal adversities differed between studies, and were most commonly retrospectively ascertained.

Coagulation parameters were documented or retrospectively ascertained in 90% (18/20) of patients with bleeding complications.

Moreover, the use of retrospectively ascertained childhood cancer cases in epidemiologic investigations has restricted the incorporation of biological and clinical parameters.

We analysed the time from seroconversion to AIDS via Cox proportional hazard model, a method that allows for late entry and inclusion of retrospectively ascertained seroconversion [ 11].

Because these samples were tested retrospectively, ascertaining the HEV IgG status of other family members was not possible.

Our institution is a referral center, and it may be difficult to retrospectively ascertain full details of previous treatments that referred patients received.

For seven patients, the exact measurement of residual DCIS was not available, and it was not possible to retrospectively ascertain the exact size.

We acknowledge that our results could be corroborated by an analysis of the actual duration of dual antiplatelet therapy in individual patients, but precise durations in individual patients are unavailable in most trials and we lacked the resources to retrospectively ascertain and validate usage data.

Migraine diagnosis was ascertained retrospectively and was not confirmed by headache experts, thus potentially introducing a bias.