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The California Gonorrhea Surveillance System California Department of Public Health STD Control Branch
Contact info:
Rain Mocello, [email protected]
(510) 620-3717
Michael C. Samuel, [email protected]
Gail Bolan, [email protected]
Denise Gilson – Data [email protected]
METHODS
Case selection
Goal – to interview at least 1500 (5%) of reported CA gonorrhea cases (including SF)
Jurisdictions chose sampling fraction- 10% random sample- 100% of all reported cases
Planned for minimum of 50% response rate; target response rate 80%
Data weighted for analysis
CIR initiatedby local staff
Case Selection and Flow of Data+ GC reported to local health jurisdiction by
lab report and/or CMR
100% Follow-Upn = 27 LHJs
10% Samplen = 34 LHJs
Case Investigation Record (CIR)
initiatedby local staff
Case reported to the State
Weekly random sample
taken at the State
Patient and provider follow-
up begin
Pre-populated CIR sent to local health jurisdiction
Data analyzed by State and returned to
local jurisdictions
Completed CIR mailed to State
and entered
•8 week interview window
•8 contact attempts
•2 on evenings•2 on weekend
Sample Pre-PopulatedCase Investigation Record
Response Rate
Response rate = % interviewed among all sampled and eligible cases with CIR on file
Increased from 56% in 2007 to 62% in 2008
Higher in jurisdictions following all cases In 2008, 58% response rate in sampling jurisdictions Compared to 71% in jurisdictions following all cases
Main reasons for non-interview Inadequate case locating information Case non-response
Once contacted, cooperation rate was 91%
Response Rate Sub-analyses
Among eligible cases in 2007-08
San Francisco excluded due to differing methodology
Case and provider-reported data for 47% of cases
Provider data only for 37% of cases
Case interview only for 3% of cases
Neither case nor provider data for 13% of cases
Analysis of 2009 data showed that 98% of interviews were completed within 6 contact attempts
System Performance
Feedback provided to jurisdictions monthly Timeliness of reporting List of active cases Request for past due forms
Quality control Demographics of sampled and interviewed cases are
compared with those of all other reported GC cases No meaningful differences were found in age, sex,
and race/ethnicity
Uses of Data - Recent Analyses
Changes to the distribution of sexual orientation of interviewed cases over time Greater proportion of MSM cases in 2009
Popper/meth use Increases in popper use, especially among HIV+
Proper treatment Over 10% of CA cases inappropriately treated or not
treated by their diagnosing provider
Uses of Data - Interventions & Publications
Data-to-Action Working Group Notify private providers and urgent care clinics/ERs
of current treatment guidelines
Manuscripts Methods article in Public Health Reports Manuscript on GC treatment practices in California
submitted to Journal of Clinical Infectious Diseases
Quarterly reports Statewide, regional, and county-level summary data Data used in local quarterly STD updates
