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Texas Medical Monitoring Project (MMP) Meeting Omni Austin Hotel at Southpark Thursday, May 31, 2007 a multi-stage probability sample of HIV infected adults.

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Presentation on theme: "Texas Medical Monitoring Project (MMP) Meeting Omni Austin Hotel at Southpark Thursday, May 31, 2007 a multi-stage probability sample of HIV infected adults."— Presentation transcript:

1 Texas Medical Monitoring Project (MMP) Meeting Omni Austin Hotel at Southpark Thursday, May 31, 2007 a multi-stage probability sample of HIV infected adults in care

2 Current TX-MMP Team: Sharon K. Melville, Principal Investigator Tammy Sajak, Co-Principal Investigator Sylvia Odem, Project Coordinator Mark Heinzke, Data Manager Jim Phillips, Data Collector Jose Velez, Data Collector

3 Medical Monitoring Project Goals  Provide local and national estimates for the population in care for HIV  Determine health-related behaviors and access to and use of prevention and support services  Gain knowledge of care and treatment provided  Examine variations of factors by geographic area and patient characteristics

4 First Stage – States and Cities Selected 20 states & 6 cities sampled AIDS prevalence (probability proportionate to size – S, M, L) Texas and Houston – two large sites Large Medium Small LA County Puerto Rico San Francisco Houston Chicago Philadelphia New York

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6 Second Stage – Facility Sampling Finding HIV Care Facilities  There was no existing list of facilities providing HIV care  Obtained list of all possible facilities from HARS, ELR and ADAP  Needed to call all possible facilities

7 Second Stage – HIV Care Providers Selected 2006/2007 2005 Texas: 2005 – 27 of 160 providers selected; 2006/2007 – 47 of 181 providers selected Houston: 2005 – 21 of 107 providers selected; 2006/2007 – 21 of 107 providers selected Contacted 860 & 196 facilities 181 & 107 Facilities Provide HIV Care 47 & 21 Facilities sampled by RAND 33 so far & 21 Facilities to participate 160 & 107 Facilities Provide HIV Care Get estimated patient load per year (EPL) (S, M, L) 27 & 21 Facilities Selected 17 & 9 Facilities agree to participate

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10 Patient Sampling  Collect list of de-identified patients seen during the previous specified time period from selected facilities  Clean lists of any duplicates and combine with other facilities  Submit complete list to RAND for sampling

11 Third Stage – Patients Selected 20052006/2007 Texas: 2005 – 8,645 Total Patients, 150 Sampled. 2006/2007 – >20,000 Total Patients, 400 Sampled Houston: 2005 – 3,574 Total Patients, 100 Sampled. 2006/2007 - >10,000 Total Patients, 400 Sampled 33 so far & 21 Facilities to Submit Patient Lists. Greater than 20,000 & 10,000 Patients to be Collected 400 & 400 Patients to be Sampled by RAND 17 & 9 Facilities Submit Patient Lists 8,645 & 3,574 Patients Collected 150 & 150 Patients Sampled by RAND Facilities that agree to participate

12 Validity of MMP Data If 100% of Project Areas, 75% of Facilities, and 75% of patients from each facility are enrolled, the overall response rate is 1.0 *.75 *.75 =.56 or 56% Important because facilities can’t be substituted for non- participating facilities A facility that refuses to participate has refused participation for all its patients

13 Representativeness of Data The MMP multi-stage sampling method will provide data that is representative at local, state and national levels of:  HIV infected adults in care  Their Behaviors  Adherence; sexual; drug use; care-seeking  Clinical outcomes  Treatment; CD4 and viral load; opportunistic illnesses  Type and quality of care received  Met and unmet needs for HIV care and prevention services

14 Patient Interview  Demographics  Access to Health Care  Adherence  Unmet Needs  Sexual Behaviors  Drug Use Behaviors  Local Questions Module

15 Medical Chart Abstraction  Demographics  Insurance Status  Opportunistic Illnesses  Antiretroviral Therapy  Laboratory Data  Substance Abuse/Mental Health  Referrals to other facilities/services

16 Local Questions Module  Captures the health needs and services of local communities  Based on consumer, provider, stakeholder and community input Examples:  HIV care and testing during/after pregnancies  Use of complementary medications  Race/ethnicity of sex partners  Alternative sources to obtain HIV medications  Crossing the borders to receive care or meds

17 Electronic data collection  Handheld Assisted Personal Interview (HAPI)  Pocket PCs  Computer Assisted Personal Interview (CAPI)  Laptops  Medical Record Abstraction (MRA) Application

18 Electronic Data Collection Advantages  Entry of data at time of administration of interview – No separate data entry (time and costs)  Data quality – Eliminates skip pattern errors – Automatic entry/calculation of certain variables – Simplifies review/standardization of survey  Clean data available almost immediately – No/minimal data cleaning

19 Patients Eligible for Interview  Patients HIV+ 18 years of age or older  Patients with HIV seen at the sampled facility during the patient definition period (3 month time period)

20 Records Eligible for Abstraction  Records of interviewed patients at the facility from which they were recruited  Records from other facilities at which they received HIV care during the surveillance period

21 Time Periods Covered by Medical Record Abstraction Surveillance period form Date of interview 12 months XX

22 Time Periods Covered by Medical Record Abstraction Medical History FormSurveillance period form Date of interview 12 months X 1 st HIV-related visit XX

23 Medical History Form  Clinical information from the period prior to the SP  Have important background information to understand the course of events.  May need to visit other facilities if the client received care from multiple facilities.

24 Surveillance Period (visit) Form  Information collected includes all visits that occurred during the surveillance period  Abstraction from eligible sites (in addition to one from which patient was recruited)  Abstractors will use one form for each visit the patient had during the surveillance period

25 2005 Interview & Chart Abstraction Summary  Interviews Completed – 86  Chart Abstractions Completed - 87


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