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Table 4 KQ1 eligibility criteria (benefits and harms of screening)

From: Screening for prostate cancer: protocol for updating multiple systematic reviews to inform a Canadian Task Force on Preventive Health Care guideline update

 

Inclusion criteria

Exclusion criteria

Population

Individuals not known to be at elevated risk for prostate cancer.

Secondary analyses for decision-making:

• Screening interval (KQ1)

• PSA thresholds (KQ1b)

• Age: <55 years, 55-69 years, ≥70 years (KQ1c)

• Race and/or ethnicity (KQ1d)

• Obesity, as defined by study authors (KQ1d)

• Family history (KQ1d)

Individuals <18 years. Individuals with a pre-existing or previous history of prostate cancer. Individuals specifically selected for the presence of another condition or risk factor (i.e., individuals working with chemicals known to be carcinogenic or individuals with known genetic markers).

Individuals who have had a previous PSA screen and/or individuals with a “normal” change in urine function are not excluded. Normal will be defined by clinician judgment.

Interventions

One or more clinical or lab tests (e.g., PSA+DRE, PSA alone, DRE alone) with or without additional tests before the biopsy.

Other screening methods that do not include PSA or DRE.

Comparator

No screening

Usual care

Alternate type of screening within the options previously stated (e.g., DRE alone) [KQ1a]

N/A

Outcomes

Potential benefits

1. Reduced prostate cancer mortality

2. Reduced all-cause mortality

3. Reduced incidence of metastatic cancer

Potential harms

4. False positives

5. Overdiagnosisa

6. Complications due to biopsy

7. Incontinence (urinary or bowel)

8. Erectile dysfunction

Either benefit or harm

9. Quality of life or functioning (overall and disease-specific*)

10. Psychological effects

As defined/reported by the study authors.

*scales with acceptable measurement properties (e.g., validity, reliability) for use in prostate cancer

N/A

Timing of outcome assessment

Any timing

N/A

Setting

Primary care settings

Settings not generalizable to primary care

Study design

Benefits and harms

Randomized (including cluster RCTs), quasi-randomized, and controlled clinical trials

Harms only

Cohort studies (if needed)b

Editorials, commentaries, letters, conference proceedings, government reports, case series, case report, narrative reviews, systematic reviewsc

Language

English or French

N/A

Dates of publication

All dates are included (as per the UK NSC search), however, the current update will include 2019 to present

N/A

  1. aOutcome data for overdiagnosis will be extracted as reported by the study authors. When presenting results, overdiagnosis may be expressed as the number of over-diagnosed cancers over the following possible denominators: (1) the number of men screened, (2) the number of screen-detected cases, or (3) the number of prostate cancer cases
  2. bIf certainty in the evidence is a barrier to the development of recommendations and the CTFPHC believes that further evidence from cohort studies may influence their recommendations
  3. cThe reference list of relevant systematic reviews will be reviewed for relevant studies