Rafiza Abdul Razak, Shahazwan Mat Yusoff, Chin Hai Leng, Anwar Farhan Mohamadd Marzaini
Evaluating teachers' pedagogical content knowledge in implementing classroom-based assessment: A case study among esl secondary school teachers in Selangor, Malaysia
PloS one
2004 2008 two large prospective multicenter studies published resulted improved understanding operative indications treatment leggcalvperthes disease lcpd based patient age disease severity resultant radiographic outcomes primary aim study evaluate trends surgical management lcpd united states prior subsequent publication landmark studies crosssectional retrospective analysis us pediatric hospitalizations surgical management lcpd conducted using kids inpatient database 2000 2016 patients 12 years age younger included primary admission diagnosis lcpd lcpdrelated procedure hospitalization data subsequently weighted produce nationallevel estimates variables pertaining patient age group procedure demographics hospital characteristics analyzed post hoc analysis results kids inpatient database also corroborated pediatric health information system database weighted sample 2786 lcpd surgical admissions met inclusion exclusion criteria 112 surgical admissions patients 6 years age 359 6 8 years age 529 8 years age significant decrease admissions surgical management lcpd age groups time however appreciable change proportion lcpd surgical admissions performed among 8 12 6 8 6 years age groups femoral osteotomy remained common surgical procedure osteotomy types including pelvic unspecified osteotomies involving hip decreased time p 0001 decreasing rate hospital admissions lcpd surgery since 2000 perhaps indicating decline incidence disease furthermore despite evidence supporting lcpd surgical outcomes related patient age change proportion patients undergoing surgery age group time level iiiretrospective study