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Table 2 Prevalence of SRE among mPC men according to the ‘base case’ and ‘alternative’ code definitions

From: Measurement of skeletal related events in SEER-Medicare: a comparison of claims-based methods

 

Base case definition

Alternative definition

 

N

% (of full cohort)

% (of patients with at least 1 SRE)

N

% (of full cohort)

% (of patients with at least 1 SRE)

PF

2202

24.5 %

52.7 %

1200

13.3 %

31.2 %

SCC

543

6 %

13 %

738

8.2 %

19.2 %

RAD

2736

30.4 %

65.5 %

2926

32.5 %

76 %

BSa

571

6.4 %

13.7 %

571

6.4 %

14.8 %

Any SRE

4176

46.4 %

100 %

3851

42.8 %

100 %

  1. Base case definition included codes identified under the ‘high specificity’ lists of RAD and SCC and codes under the ‘high sensitivity’ list of PF (in addition to all BS codes)
  2. Alternative definition included codes identified under the ‘high specificity’ list of PF and codes under the ‘high sensitivity’ lists of RAD and SCC (in addition to all BS codes)
  3. SRE Skeletal Related Event, PF Pathological Fracture, SCC Spinal Cord Compression, RAD Bone Palliative Radiotherapy; BS Bone surgery
  4. aOnly one set of codes was used for bone surgery