Sentence examples for retrospective frequency from inspiring English sources

From 29 March to 20 May 2009 we carried out a retrospective frequency matched case-control study.

A retrospective frequency-matched case control study was conducted in Lambutina to identify the risk factors associated with suspected cholera.

The children's food, snacking and meal frequencies were reported by their parents using a retrospective food frequency questionnaire.

To date, research in this area has made use of retrospective food frequency questionnaires (FFQs) to estimate dairy intake.

Patients should not have followed any kind of specific diet in the preceding 3 months, as assessed by interview and a retrospective food frequency questionnaire.

The children's food and drink intake was reported by their parents using a retrospective food frequency questionnaire (FFQ), which asked about habitual daily consumption of 39 food items, 11 types of dinks, 13 snack items and 5 main meals during the last 6 months.

For efficacy evaluation, all treated animals with evaluable retrospective baseline seizure frequency for which at least one measurement of the primary efficacy variable was available were included, representing the intent to treat population (ITT).

We analysed in a retrospective study the frequency of cystic lymph node (LN) metastases in neck dissection specimens of 123 patients with primary squamous cell carcinoma (SCC) arising in the palatine tonsils (62 M/14 F), the base of the tongue (38 M/5 F) and the nasopharynx (2 M/2 F).

In this retrospective observational study, frequencies and clinicopathological features of KRAS, NRAS, BRAF and PIK3CA mutations were evaluated in patients with mCRC.

In the only retrospective study available, the frequency and duration of cluster periods and the frequency of single headache attacks during the bouts increased in less than 50% of patients as they approached adulthood.

Nevertheless, retrospective reports of migraine frequency are not ideal.