Prevalence Rate of Adolescent Idiopathic Scoliosis: Results of School-based Screening in Surabaya, Indonesia
- Author:
Komang-Agung IS
;
Dwi-Purnomo SB
;
Susilowati A
- Publication Type:Original article
- Keywords:
school-based scoliosis screening;
children;
prevalence rate
- MeSH:
Scoliosis;
Adolescent
- From:Malaysian Orthopaedic Journal
2017;11(3):17-22
- CountryMalaysia
- Language:English
-
Abstract:
Introduction: Scoliosis is a lateral spinal deformity of 10
degrees or more, resulting in a C-shaped or S-shaped curve
of the spine. Information about adolescent idiopathic
scoliosis (AIS) prevalence rate is important not only for
paediatric health care planning strategy but also for parent's
awareness. This study aims to find the suitable inclination
cut-off angle and the prevalence rate of AIS in Surabaya,
Indonesia.
Materials and Methods: This is a descriptive crosssectional
study conducted in 2010. We performed stratified
random sampling of 784 Elementary and Junior High School
students in Surabaya between 9-16 years of age. Scoliosis
screening was performed by the Adam's forward bending test
(FBT). The students with positive FBT were measured for
the inclination angle with scoliometer, and then subjected to
radiologic examination. Prevalence rate, gender ratio, and
the cut-off point value of inclination angle were determined
by a descriptive statistics analysis.
Results: Adam's forward bending test was positive in 50
students (6,37%). Among them, 23 students (2,93%) four
males and 19 females had Cobb angle of ≥10°. The 5° cutoff
point value of inclination angle had a 95.6% sensitivity,
an 18.5% specificity, a 50% positive predictive value (PPV),
and a 83.33% negative predictive value (NPV); while the 7°
cut-off point had a 78.26% sensitivity, a 88.88% specificity,
a 85.7% PPV, and a 82.7% NPV.
Conclusion: The prevalence rate of AIS in Surabaya is
2.93% and the 7° cut-off point of inclination angle is suitable
for school-based screening.
