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This study is being conducted to evaluate the hypothesis that study subjects will be more responsive to follow-up phone calls made from personal cell phone numbers than from hospital landline numbers. To evaluate this, study subjects previously enrolled in a cardiac biomarker study (the Early Identification of Acute Coronary Syndrome study) were randomized to receive their follow-up phone calls (the calls associated with the Early ID study occur at 30 days and 1 year after initial enrollment) from either a hospital office landline or from the personal cell phones of the research assistants making these calls. This was done as a 1:1 randomization. The number of call attempts required to reach the study subjects were recorded as the calls were made and the date of successful follow-up was recorded once contact was made.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Hospital Landline | Active Comparator | Subjects in this arm have all of their follow-up phone calls placed from a hospital landline number. |
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| Private Cell Phone | Active Comparator | Subjects in this arm have all of their follow-up phone calls placed from a private cell phone number. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Hospital Landline Phone Calls | Other | Follow-up phone calls are made from the hospital landline phones in a research office |
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| Measure | Description | Time Frame |
|---|---|---|
| Successful phone call contact at 30 days | Contact is attempted from 30 days after enrollment through 90 days after enrollment. If contact is made during this time frame, 30 day follow-up is considered to have been successful. | 90 days |
| Measure | Description | Time Frame |
|---|---|---|
| The number of call attempts required to obtain successful follow-up | Contact is attempted from 30 days after enrollment through 90 days after enrollment. The number of calls required to make successful contact in this time frame are recorded. | 90 days |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Judd Hollander, MD | University of Pennsylvania | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital of the University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | United States |
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| Private Cell Phone Calls | Other | Follow-up phone calls are made from the private cell phones of research assistants |
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