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Indicators of the screening program for congenital hypothyroidism in alexandria
Nihad I Dabbous1, Hanan M Abd El-Aziz, Nagwa Y Abou El-Enein
1Department of Family Health, High Institute of Public Health, Alexandria, Egypt. hnnmourad@yahoo.com.
Insights
Newborn screening for congenital hypothyroidism (CH) shows increasing coverage and effectiveness in Alexandria. The program improved case detection and management over three years.
Area of Science:
- Pediatric Endocrinology
- Public Health Screening Programs
Background:
- Newborn screening for metabolic and endocrinological disorders is a critical public health service.
- Congenital hypothyroidism (CH) is a treatable condition detectable through newborn screening.
Purpose of the Study:
- To evaluate the Alexandria congenital hypothyroidism (CH) screening program's coverage.
- To assess the program's effectiveness in case detection and management.
- To determine the positive predictive value of the CH screening test.
Main Methods:
- A retrospective record review was conducted from October 2000 to December 2003.
- Data analysis included program coverage, true/false positives, and positive predictive value.
- A follow-up study of positive CH cases was performed in 2002.
Main Results:
- Program coverage increased from 49.4% in 2001 to 77.6% in 2003.
- Positive predictive values ranged from 57% to 65% across the study years.
- Therapy compliance was 73.3%, with 56.7% adhering to fixed schedules.
Conclusions:
- The Alexandria CH screening program demonstrated a positive trend in coverage and effectiveness.
- Improvements in detection and management were observed over the study period.
- The study highlights the importance of ongoing evaluation for optimizing newborn screening programs.
Abstract:
The screening of newborn children for metabolic and endocrinological disorders is one of the unsung successes of the health service. This study aimed to evaluate the congenital hypothyroidism (CH) screening program in Alexandria in terms of coverage, effectiveness of detecting and managing the cases. A record review was conducted at the Information and Decision Making Support Center of Alexandria Health Directorate during the period from October 2000 to December 2003 to evaluate the coverage of the program and to detect the number of true positives and false positives used to calculate the positive predictive value of the screening test. A follow- up study was conducted at the pediatric clinic of the Student's Sporting Hospital for all positive cases detected by the (CH) screening program attending the clinic for diagnosis, confirmation and treatment during the year 2002 (30 cases were followed-up) . The percentage of program coverage was 49.4%, 63.3% and 77.6% in the years 2001, 2002 and 2003 respectively. The total positive cases in the three years were 26, 30, and 14 with positive predictive value of 65%, 57%, and 64% respectively. About three-quarters (73.3%) of all positive cases (30 cases) were compliant to therapy. Compliance was on fixed times in more than half of cases (56.7%), and irregular in 40%. There was a positive trend of increase in program coverage and effectiveness in detecting and managing the cases through the three years of the study.
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