Novel Methods for Implementing Measurement-Based Care for Youth in Low-resource Environments: Complete Statistical Analysis

1. Trial at a Glance

This page covers the registry results for Novel Methods for Implementing Measurement-Based Care for Youth in Low-resource Environments (NCT05644756), a na na study. The primary outcome is Number of Youth Clients Provided Outcome Questionnaires.

2. Clinical Question

In general, an implementation study asks whether and how a practice is taken up in a service setting, rather than estimating the effect of a clinical treatment against a control. Measurement-based care uses questionnaires to evaluate clinical outcomes. In this record, the study team plans to work with clinic staff to identify what makes questionnaire use difficult and to plan improvements. The aim is therefore tied to implementation activity and questionnaire use, not to a direct comparison of youth clinical outcomes between treatment groups.

The record lists an enrollment of 76 and a status of active, not recruiting. It does not report outcome values, so the direction or size of any change in questionnaire use cannot be assessed from the registry record.

3. Trial Design

This is a single-group behavioral implementation study sponsored by Kaiser Permanente. The registry lists phase as NA, allocation as NA, and masking as none. Its design description does not identify a randomized assignment or a separate control arm. Accordingly, the study should be read as an evaluation of implementation work within participating clinics, not as a randomized comparison of two clinical interventions.

The registry describes four community mental health clinics in Washington state. Clinic staff will receive trainings on implementing measurement-based care, and the study team will work with staff to identify obstacles to questionnaire use and plan improvements. Activities include trainings, interviews, collaborative discussions, and interactive activities. The named intervention includes methods to identify and prioritize determinants and methods to match strategies to prioritized determinants. The precise content and delivery schedule of those methods are not reported in the registry record.

The primary outcome is planned for assessment at 6 months, designated pre-implementation, then at 9 months and 12 months after enrollment. The record labels the later assessments as 3 months and 6 months post-implementation. This timing makes within-study change relevant, but it does not create a control group. Without a comparison group, observed change—if reported—would not by itself isolate the implementation activities from other explanations for change over time.

The registry lists enrollment of 76, a start date of 2022-10-25, primary completion of 2024-07-31, and status active, not recruiting. These are record details, not evidence that all planned assessments or analyses have been completed. The registry record does not report whether enrollment is actual or estimated, the analysis population, or the protocol’s statistical analysis plan.

4. Participant Flow and Accounting

The registry reports how participants moved through each stage of the study. All counts below are exactly as posted; missing counts are not inferred from other stages.

Before assignment: For the first aim of the study (co-developing implementation plans), any member of participating community mental health center were invited to participate. After that, only therapists who served youth clients were included for the outcome data because they needed to be able to report on their use of outcome measures with youth clients. One clinic that enrolled clinic members later decided that they could not continue with the study, citing high waitlists and competing organizational priorities.

Aim 1 Activities (Ethnography)

Reasons for not completing this period:

Aim 2 Activities (Fidelity to MBC)

Reasons for not completing this period:

5. Baseline Characteristics

The table reproduces the baseline characteristics posted in the registry, which describe the participants analysed at baseline and help show whether the randomized groups were comparable.

Population: This analysis population includes only youth-serving therapists, so it is a subset of the full sample.

6. Primary Endpoint

The registry lists the primary outcome as Number of Youth Clients Provided Outcome Questionnaires, measured over We will assess at 6 (pre-implementation), 9 (3 months post-implementation), and 12 (6 months post-implementation) months after enrollment..

The primary outcome is titled “Number of Youth Clients Provided Outcome Questionnaires.” Its unit is the number of youth clients given measures, and its summary parameter is a mean with standard deviation. The description says therapists will report the number of clinical outcome questionnaires administered to youth clients, including the total number of outcome questionnaires per client used, before and after the researcher-driven implementation process.

The title and description emphasize related but not identical aspects of measurement: one refers to youth clients given measures, while the description also refers to the number of questionnaires administered and the total per client. The exact operational definition used for analysis is not reported in the registry record. That distinction matters for interpretation, because a count of clients receiving any questionnaire is not necessarily the same quantity as a count of questionnaires or the number used per client.

In general, a mean can describe the average level of a numeric outcome across the observations included in an analysis. The standard deviation describes how spread out those observations are around the mean; it is not a measure of uncertainty in the estimated mean. Repeated assessments can describe how the average outcome changes over time, but the record does not report the statistical model, the unit of analysis, or how measurements from the same clinic or therapist would be handled.

The planned assessment times are 6 months before implementation, 9 months, and 12 months after enrollment. No observed means, standard deviations, confidence intervals, or test results are reported in the registry record, so the endpoint’s observed level and change cannot be described.

7. Why No Re-analysis Is Shown

8. Statistical Interpretation

9. Statistical Methods Explained

What does the mean represent? The primary outcome is classified as continuous and summarized using a mean and standard deviation. In general, a mean is an average of the numeric observations included in an analysis. Its interpretation depends on what one observation represents. The registry’s title points to youth clients given outcome questionnaires, while its description includes the number of questionnaires administered and the total number used per client. The analysis unit and the final operational definition are not reported in the registry record. Without those details, the mean cannot be tied confidently to a specific counting unit.

What does the standard deviation describe? In general, a standard deviation describes variability among observations around their mean. It is a descriptive measure of spread, not a confidence interval and not the uncertainty of the mean itself. A confidence interval is used to express uncertainty about an estimated quantity, taking account of the analysis and the information in the data. The registry lists standard deviation as the outcome’s dispersion measure, but it does not report an observed standard deviation, confidence interval, or method for estimating uncertainty.

How do the planned assessment times matter? The record plans assessment at 6 months before implementation, 9 months, and 12 months after enrollment, with the later assessments described as 3 months and 6 months post-implementation. In general, repeated observations over time can be analyzed to describe changes in an outcome. If observations are correlated because they come from the same therapist, clinic, or client, an analysis may need to account for that dependence. The record does not identify which individuals or units contribute repeated observations, nor does it report a model for handling correlation. It is therefore not possible to say how the analysis would distinguish within-unit change from variation between units.

Why might count outcomes need careful modeling? General statistical guidance is that count-like outcomes can have skewed distributions, many low values, or variability that differs from what a simple model assumes. Over-dispersion means the data vary more than a model’s assumed distribution allows; if ignored, uncertainty estimates can be too small. This is a general consideration, not a claim about the observed data in this study. The registry identifies the outcome as continuous and specifies a mean and standard deviation, but it does not report the observed distribution or modeling strategy. The outcome’s final coding and any checks of model assumptions are not reported in the registry record.

What does the design allow? The registered model is single group and allocation is listed as NA. In general, an analysis of change over time in a single group can describe temporal patterns, but it does not provide the same evidence as a concurrent control comparison for attributing change to an intervention. The registry does not describe a randomized comparison. The specific statistical contrast between assessment times, if any, and any adjustment for clinic or therapist characteristics are not reported in the registry record.

What can be learned from a significance test? In general, a p-value measures how incompatible the observed data are with a specified statistical model and null hypothesis, assuming that model is appropriate. It does not measure the probability that a hypothesis is true, the size of an effect, or whether an effect is important. A p-value also cannot resolve design limitations such as the absence of a control group. No p-value, null hypothesis, or testing procedure for the primary outcome is reported in the registry record.

How should planning calculations be read? The registry describes sample-size assumptions as a planning illustration based on an observed effect and specifies a two-sided significance level of 0.05, equal allocation between two arms, and a normal approximation. That description is framed around two arms, whereas the registered model is single group and allocation is NA. This mismatch means the planning assumptions should not be taken as evidence that the study has a two-arm randomized design. The illustration is not an observed-power result. The registry record does not report the effect value used for the illustration or a study-specific sample-size justification, so its planning implications cannot be evaluated from the record.

In general, power is a design-stage probability of detecting a specified effect under stated assumptions. It is not a measure of whether a completed study has demonstrated an effect. Planning calculations based on different assumed effects can show how sample-size requirements depend on those assumptions, but they do not replace the observed estimate and its uncertainty. No numerical planning outputs are reported in the registry record, and no inference about observed power is warranted.

10. Multiplicity, Missing Data and Analysis Populations

The registry lists one primary outcome measure and one analysis. That describes the number of registered outcome and analysis entries, but it does not establish that only one statistical test, contrast, or model will be used. The registry record does not report a multiplicity plan, such as how inference would be handled across assessment times, outcome definitions, or any additional analyses. It also does not report whether the primary comparison is a change from baseline, a comparison between time points, or another contrast. Without those details, the risk of selective emphasis across analyses cannot be assessed.

Missing-data methods are not reported in the registry record. There is no description of how missing therapist reports, unobserved assessments, incomplete questionnaire counts, or other unavailable observations would be handled. The record also does not state whether missingness would be examined by time point or by clinic, or whether any sensitivity analyses are planned. In general, missingness can affect both the estimated average and its uncertainty, particularly when the reasons observations are unavailable relate to the outcome. That is a methodological consideration, not a claim that missing data occurred in this study.

The analysis population is not reported in the registry record. The listed enrollment of 76 should not be assumed to equal the number included in the endpoint analysis. No exclusions, eligibility analysis set, or rule for retaining clinics, therapists, or client observations is described. Likewise, the record does not explain whether analyses would use clinic-level summaries, therapist-level reports, client-level counts, or a different unit. These choices affect the interpretation of the mean and the precision of an estimate.

Consequently, multiplicity, missing-data handling, and analysis-population decisions remain open questions. The posted registry information is not sufficient to determine whether planned analyses were prespecified in detail or how departures from a plan would be documented.

11. Safety Results

The registry reports serious adverse events as affected participants divided by participants at risk.

Deaths

Other (non-serious) adverse events

Participants with at least one non-serious event at or above the registry's 0% reporting threshold.

The adverse-event entry lists the Measurement Based Care Implementation group, with 76 at risk for serious adverse events and 0 affected. It also lists 76 at risk for other adverse events and 0 affected, and deaths are listed as 0. These are the safety figures recorded for the group; they are counts, not a comparison against a control group.

In general, an “at risk” count indicates the population represented in the safety record for the relevant event category. It does not, by itself, explain the observation period, completeness of reporting, or how events were collected. Those details are not reported in the registry record. The entry should therefore be read narrowly as showing no affected participants recorded in the listed serious or other adverse-event categories, rather than as proof that no adverse experiences occurred in any setting or period.

The record does not list serious adverse-event terms. The absence of listed terms does not provide detail about event definitions, review procedures, or reporting thresholds. Because this is a single-group implementation study, the safety counts do not estimate a between-group difference. They also do not address whether the implementation approach changed clinical outcomes. The posted safety information is limited to the counts entered in the registry record.

12. What the Result Does, and Does Not, Mean

This study addresses how community mental health clinics might implement measurement-based care for youth. Its activities focus on working with clinic staff, identifying barriers to questionnaire use, and developing implementation plans. The primary outcome is related to the number of youth clients given outcome questionnaires, with assessments planned before and after implementation. Those features make the study relevant to understanding practice uptake in the participating clinics.

The record does not report the observed primary outcome or an estimate of change. It therefore cannot show whether questionnaire use increased, decreased, or stayed similar, nor can it show the precision of a result. The listed mean and standard deviation describe the planned outcome summary, not numerical findings. Results, confidence intervals, and primary-outcome test statistics are not reported in the registry record.

Even if a change were reported, the single-group design would limit causal interpretation. In general, a difference over time can coincide with an implementation effort without being caused by it. Changes in clinic operations, staffing, documentation, client population, or other circumstances could also influence the outcome. The record does not identify a concurrent control group that could help distinguish these explanations.

The outcome wording also matters. The title refers to the number of youth clients given measures, while the description refers to questionnaires administered and the total number used per client. These are not necessarily the same quantity. The exact analysis definition is not reported in the registry record, so conclusions about one should not automatically be extended to the others.

The most defensible reading is that the registry describes a planned implementation study and a relevant measure of questionnaire use, rather than a completed result about effectiveness. The record does not establish that measurement-based care improved clinical outcomes, that implementation barriers were resolved, or that any observed change would generalize beyond the participating clinics. Those conclusions would require outcome data and methodological details that are not reported in the registry record.

13. Why This Trial Matters Statistically

Implementation research examines how practices are introduced into real service settings. This study is statistically notable because its primary outcome concerns a service process—whether youth clients are given outcome questionnaires—rather than a clinical endpoint compared between randomized treatment groups. Clear definitions of the unit being counted are especially important: counting clients, questionnaires, or questionnaires per client can lead to different interpretations.

The planned assessments span a pre-implementation point and later post-implementation points. In general, repeated measurement can make change over time visible, but analysis must match the structure of the data. If reports are clustered within clinics or therapists, observations may not be independent. Accounting for such dependence can affect standard errors and confidence intervals. The registry record does not report whether or how clustering would be handled, so this remains a key statistical detail for readers of any future results.

The single-group design also makes the distinction between description and attribution important. A reported change could describe what happened during the study period, but without a control comparison it would not, on its own, establish that the implementation activities produced that change. This is a general limitation of interpreting before-and-after patterns, not a claim about the study’s eventual findings.

The registry lists planning assumptions framed around two arms despite recording a single-group model. This makes it important to distinguish design descriptions from planning illustrations and to avoid reading the latter as a trial comparison or as observed power. The record does not report a study-specific sample-size justification or numerical outcome estimates.

These points matter because implementation measures can be informative only when their meaning, analysis unit, timing, and uncertainty are transparent. The record identifies the setting and broad implementation approach, but it does not report the outcome results or enough analytic detail to judge precision or causal interpretation.

14. Limitations

• The posted summary statistics are the only data these results rest on; patient-level data, full protocols and statistical analysis plans are not available.
• Recalculated results are simple, unadjusted calculations from posted summaries. They do not replace the sponsor's prespecified analysis.

The registry record leaves important details about the primary outcome unresolved. Its title concerns the number of youth clients given questionnaires, while the description includes the number administered and the total number used per client. It does not report the final operational definition, the unit of analysis, or whether counts are summarized at the client, therapist, or clinic level. Without this information, the meaning of a future average may be ambiguous.

The study is registered as single group, with allocation listed as NA and no masking. The record does not identify a concurrent control comparison. Any before-and-after difference would therefore have limited ability to separate the implementation process from other changes over time. The registry record does not report adjustment strategies or design features that might address this concern.

The record describes four clinics in Washington state, but does not report how clinics or therapists were selected, how many contributed data at each assessment, or whether questionnaire-use reporting was complete. It also does not report eligibility criteria for youth clients, the analysis population, or how observations were linked across time. These omissions limit assessment of representativeness and data structure.

Statistical methods are not described in sufficient detail to assess model assumptions, clustering, missing-data handling, multiplicity, or the planned contrasts across assessment times. No observed primary outcome estimates or uncertainty intervals are reported. The planning assumptions describe a two-arm illustration despite the single-group model, and the effect value underlying that illustration is not reported in the registry record.

These limitations concern what can be inferred from the registry record; they do not establish that the study team did or did not address the issues in other documents or analyses.

15. Related Tutorials

16. Related Statistical Calculators

17. Sources

• ClinicalTrials.gov: Novel Methods for Implementing Measurement-Based Care for Youth in Low-resource Environments — NCT05644756.
• Registry record last updated 2025-07-02; status last verified 2025-06.
• Results first posted 2025-07-02.
• Data retrieved from ClinicalTrials.gov on 2026-11-09.
• Group sizes, means, event counts and sponsor-reported p-values are reproduced as posted. Effect estimates, confidence intervals and p-values not attributed to the sponsor are independently calculated from the posted summary statistics.

18. Record Summary

The registry record describes NCT05644756, a behavioral, single-group study of methods for implementing measurement-based care for youth in low-resource environments. Kaiser Permanente is listed as sponsor. The study involves four community mental health clinics in Washington state and includes trainings and collaborative work with clinic staff. Allocation is listed as NA, masking as none, and phase as NA.

The primary outcome concerns the number of youth clients given outcome questionnaires, with mean and standard deviation specified as summary measures. Assessments are planned at 6 months before implementation, 9 months, and 12 months after enrollment. The record lists enrollment of 76, a start date of 2022-10-25, primary completion of 2024-07-31, and status active, not recruiting.

No primary outcome results, confidence intervals, or test statistics are reported in the registry record. The safety entry lists 0 affected for serious and other adverse events, with deaths listed as 0. The detailed statistical analysis plan, missing-data methods, analysis population, and multiplicity procedures are not reported.