The phrase "a valid baseline for" is correct and usable in written English.
You can use it when discussing a standard or reference point that is acceptable for comparison or evaluation in a specific context.
Example: "The data collected from the initial survey serves as a valid baseline for measuring future progress in the project."
Alternatives: "an acceptable reference for" or "a reliable standard for".
Evaluable patients had received at least 1 dose of bosutinib and had a valid baseline assessment for the respective endpoint.
The full analysis set referred to patients who received ≥1 dose of study medication and had a valid baseline and postbaseline measurement for ASAS20 and consisted of all patients in the RS −1 placebo patient.
Baseline clinical characteristics for patients with a valid baseline HRQOL questionnaire are depicted in Table 1.
Only patients who had a valid baseline measure of both the ESR and the CRP were included for analyses, which resulted in the exclusion of 37 patients.
Among evaluable patients with a valid baseline cytogenetic assessment, 59% newly achieved an MCyR or maintained their baseline MCyR for ≥4 weeks, including 58% of imatinib-resistant patients and 61% of imatinib-intolerant patients (Table I).
The efficacy population set was defined as all patients randomly assigned to treatment groups who received at least one dose of study drug, had a valid baseline MG-ADL assessment, and at least one post-baseline MG-ADL assessment.
Given that late third trimester sleep is disturbed compared with sleep before pregnancy 7 and that labour and birth and the hospital environment interfere with women's sleep, there is no valid baseline objective measurement for postpartum women's sleep in either late pregnancy or the immediate postpartum.
Only patients with valid baseline scores were considered for the analyses (group A (133), group B (133) and group C (125)).
First, the relationship between baseline HRQoL and OS was investigated for patients with a valid completed baseline HRQoL measure.
