The phrase "ascertain type" is correct and usable in written English.
It can be used when you want to determine or identify a specific category or classification of something.
Example: "In order to proceed with the analysis, we need to ascertain the type of data we are working with."
Alternatives: "determine the type" or "identify the type".
A questionnaire was used to ascertain types of birds in the market, general infrastructure, and work practices.
Structured questionnaires (n = 39) were administered to health facility managers (Additional file 2) to ascertain types of services provided (including HIV and non-HIV priority services); categories and numbers of staff for the three years, and staff allocations to HIV services (Additional file 3).
Eight single nucleotide polymorphisms (SNPs) of pro-inflammatory cytokine genes (CCL2, TGFB1, IL8, CCR5, and MMP9) were genotyped in two independently ascertained type 2 diabetic cohorts with (DN) and without nephropathy (DM); consisting of patients from North India (n = 495) and South India (n = 188).
The approaches for ascertaining type 2 diabetes differed across those studies (the ICD-9 codes they used varied), and the accuracy of ascertaining type 2 diabetes remains unclear.
For fruit juice the finding was non-significant in studies ascertaining type 2 diabetes objectively (P for heterogeneity=0.008).
Methods of assessing diets and ascertaining type 2 diabetes and validity of these measurements varied across studies (table 1 and supplementary table S3).
Second, the impact of genetic variants may be age-dependent because quantitative investigations have foremost been performed in middle-aged individuals, whereas ascertained type 2 diabetes cases are generally older.
Results of the sensitivity analyses conducted to investigate potential sources of heterogeneity are shown in Table 2, including stratifications by sex, geographical region, and FFQ type, and exclusion of studies with a quality score <6 (8, 27, 30) and studies that ascertained type 2 diabetes through self-report only (11, 13, 26, 27, 33).
"I am still trying to ascertain what type of documents they were," Mr. Sawyer said yesterday afternoon.
In fact, he says, he only writes because, to his chagrin, 'I never got an instrument under control.' Had he succeeded it is hard to ascertain what type of music the 44-year-old would have made.
