The NCHS provided researchers with national data sets of mortality records, including date of death.
Study researchers extracted data from hospital medical records, including date of referral and route (urgent, routine, emergency, other); date of first consultation; investigations and findings; and diagnosis and date (histological, clinical, MDT meetings).
Following procedures identical to those we used in Phase 1, the three raters were each given full access to the patients' medical records including dates of the relevant urine cultures.
The records include date of visit, oral (caries, periodontal, endodontic, soft tissues, plaque, etc).
The records included date of birth and of diagnosis as well as addresses at birth and at diagnosis.
The records included date of birth, gender, athletic club membership, and running times after 5, 10, and 15 km.
Additional information extracted from patient records included date of birth, date of entry to the waiting list, preadmission clinic and surgery dates and surgery type.
In general, physician claims and hospitalisation discharge records included date of service encounter or hospital admission, up to 25 ICD-9 or ICD-10 (international classification of diseases, ninth or 10th revision) diagnosis codes, and procedure and billing codes.
Additional information collected from Apnea Center records included date of birth, sex, race, gestational age at birth, birth weight, payment method (Medicaid, private insurance, not insured), the indication for monitor use, and residential ZIP code.
Data retrieved from clinical records included date of birth; date of diagnosis, histology and pathological T and N category of the first BC; date of diagnosis, side, histology and pathological T and N category of the second cancer; presence or absence of symptoms at diagnosis of second cancer; surgical management; and date of last follow-up.
To focus on the role of the SPC service, referral patterns were recorded including date of referral and the interval between referral and death.
