Primary care utilization and cardiovascular screening in adult-aged survivors of childhood cancer: A report from the childhood cancer survivor study (CCSS).
Bibliographic record
Abstract
e22020 Background: Among the half million survivors of childhood cancer in the US, cardiovascular disease (CVD) is the leading non-cancer cause of premature death. Adult survivors of childhood cancer are largely managed by community-based primary care providers (PCPs), and healthcare utilization patterns related to CVD screening and survivorship care are not well-described. Methods: Within the CCSS cohort, we conducted a randomized intervention trial (NCT03104543) focused on improving CVD risk factor control among survivors at increased risk for CVD due to prior chest radiotherapy and/or anthracycline chemotherapy. Using medical records from participants’ PCPs over the 2 years preceding trial enrollment, we ascertained the numbers of PCP and specialist visits, CVD conditions (i.e., hypertension, dyslipidemia, diabetes) and screening (i.e., blood pressure, lipid, diabetes testing, and cardiac testing [ECG, echocardiogram, or other imaging completed or planned]). We also abstracted acknowledgement of participants’ cancer history, cardiotoxic treatment exposures, or a survivorship care plan (SCP). Multivariable logistic regression assessed characteristics associated with having cardiac testing, retaining covariates associated with p < 0.10 in univariate testing. Results: Of 347 enrolled participants, 293 (84%) had evaluable data (median age 40y, range 22–65; 49% female; 87% non-Hispanic White; mean 31y since childhood cancer). In the prior 2y, 81% of participants had a documented PCP office visit (median 3 visits [IQR 2–5]), 22% had a subspecialty visit (4% saw cardiology), and 16% had no visits. The prevalence of blood pressure, lipid, and diabetes screening was 82%, 57%, and 63%, respectively; 29% had cardiac testing done or planned, including 22% with echocardiography. Only 68% of participants had records referencing a history of cancer. PCP documentation of prior cardiotoxic exposures was low compared with known exposures: radiotherapy (35% vs 69%; p < 0.001), anthracycline chemotherapy (9% vs 76%; p = 0.017); only 12% had any documentation noting an increased risk for CVD. Few participants’ records referenced a need for cancer-related late effects surveillance (38%), and even fewer referenced an SCP (5%). In multivariable analysis, independent predictors of cardiac testing included documentation of increased CVD risk (Odds Ratio [OR] 11.61, 95% CI 3.31–40.67), presence of a late effects surveillance plan (OR 3.71, 95% CI 1.62–8.48), and existing CVD conditions (modeled as 0, 1, or 2+ conditions; OR 2.21, 95% CI 1.41–3.47, for each additional level). Conclusions: Adult survivors of childhood cancer at increased risk of CVD had low rates of cardiac testing and documentation of risk in PCP medical records. Increasing participant and PCP awareness of CVD risks and late effects surveillance recommendations may improve screening.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".