Table 1.
Number of Subjects Approached and Eligible for Study and Response Rates to Interview Among the Eligible Subjects, Ghana Breast Health Study
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|---|---|---|---|---|
| Cases | Controls | |||
| Number | Percent | Number | Percent | |
| Approached | 2,676 | 2,528 | ||
| Not eligible | 458 | 176 | ||
| Inadequate grounds for suspicion of breast cancer | 34 | |||
| Not biopsied Unknown reason for no biopsy | 9 | |||
| Not age 18-74 years | 52 | 9 | ||
| Does not live in catchment area | 261 | 4 | ||
| Not lived in catchment area ≥ 1 year | 16 | 3 | ||
| Diagnosed > 1 year ago | 72 | |||
| Wrong address or could not be located | 0 | 70 | ||
| Relocated/moved from the area | 0 | 54 | ||
| Wrong person, male, duplicate | 2 | 9 | ||
| Deceased | 0 | 5 | ||
| Not on EA list | 0 | 3 | ||
| Language, hearing, speaking problem | 5 | 10 | ||
| Mentally incompetent | 6 | 2 | ||
| Comorbidity issue | 1 | 7 | ||
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| ||||
| Eligible (Approached minus not eligible) | 2,218 | 2,352 | ||
|
| ||||
| Non-response | 1 | 0.1 | 17 | 0.7 |
| Consented by study but not completed | 1 | 0 | ||
| Could not be located after ≥5 attempts | 0 | 12 | ||
| Subject unavailable | 0 | 5 | ||
| Refused | 15 | 0.7 | 174 | 7.4 |
| Enrolled | 2,202 | 99.2 | 2,161 | 91.9 |