Exact(5)
This retrospective study matched patients based on the amount of lengthening, percentage lengthening, patient age and difficulty of the procedure.
They matched patients based on pre-scan measured creatinine clearance, diabetes and mechanical ventilation.
We deliberately matched patients based on the criteria at the time of primary diagnosis.
Finally, we matched patients based on the propensity scores and compared the survival of patients treated with and without adjuvant chemotherapy using a marginal Cox model for correlated data.
To ensure that our results are not affected by baseline renal function and other important predictors of renal outcomes, such as blood pressure and urinary albumin excretion we performed a sensitivity analysis in which we matched patients based on their propensity score of developing serum potassium ≥5.0 mmol/l.
Similar(55)
Prior to matching patients based on propensity score, inpatients were shown to be significantly older and to have higher BMI compared with outpatients (p < 0.001).
After matching patients based on preoperative health conditions and other confounding variables, there was a significant difference in the complication rates for the inpatient and outpatient groups with ankle fracture (Table 3).
Several different methods were used to match patients based on the severity and duration of illness.
Another way is to match patients based on the specialty of the prescribing physician, such as pulmonary or allergy specialists versus primary care provider.
One way to deal with the problem of heterogeneous clinical presentations is to match patients based on the clinical setting where they started ICS/LABA treatment, such as a clinic visit, ED visit, or hospitalization.
In addition to adopting a fixed follow-up time, these methods included: 1) matching patients based on a propensity score [ 15] of extensive scope and detail [ 16], and 2) deriving intent-to-treat and post-discontinuation risk estimates [ 17].
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