At every ART visit, follow-up details with their dates are entered in the master card, and these include transfer to another ART clinic, treatment discontinuation and death.
Although this appears to be an excellent external data source for validation, 100% match is not possible since the surgical procedure date is entered in the LROI database, while the date of the start of financial reimbursement of the hospital is entered in the Vektis database (which is the date of indication for a primary or revision arthroplasty).
Assuming that the case data were entered in chronological order, we standardized dates by using, as a cue, the dates of the preceding and following AES cases.
The tip date option was used to provide dating information; the tip dates were entered as shown in Table 1 with a precision (accuracy of collection date) of 0.5, except for EHNV, ESV, and FV3, for which we entered a precision of 2.0, and TFV for which we entered a precision of 5.0.
The other important issue was that 13/91 respondents provided no date of referral or provided an 'out of range' date; in these instances, the dates were entered from hospital records.
The date of diagnosis for DM was based on the diagnosis date entered into SCI-DC by clinicians, taking the earliest date where multiple dates were entered.
The primary date of type 2 diabetes diagnosis was based on the date entered into the SCI-DC by clinicians; if multiple dates were entered we took the earliest date.
It is not always clear in the literature whether reported dates are calibrated or not; these dates are entered without calibration as 'Unknown' dating technique.
The invoice or birth date should be entered in cell A2.
It was difficult to tell that anything of importance had occurred, and a date which will be entered in the history books as long as histories of Britain are written, was taken by most people as a matter of course".
