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Cost E ffectiveness A nalysis. Is it cost effective to vaccinate young girls against HPV to prevent cervical cancer?. Background. Human Papilloma Virus (HPV) is the cause of 99% of all cases of Cervical Cancer.
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CostEffectivenessAnalysis Is it costeffective to vaccinateyounggirlsagainst HPV to prevent cervical cancer?
Background • Human Papilloma Virus (HPV) is the cause of 99% of all cases of Cervical Cancer. • Thereare more than 100 different types of HPV, not all of themarecarcinogenic. • In 2008 a vaccine against HPV types 16 and 18 wasintroduced in DK to all 12 yearoldgirls. • HPV types 16 and 18 are the cause of 70% of all cervical cancers.
Screening • Womenbetween the age of 23 and 50 areinvited to participate in a screening test to detectpre-cancerouscells (early stages of cancer) every 3 years. • Womenagedbetween 51 and 65 areinvited to a screening test every 5 years.
HPV Vaccine 3500 kr 34000 pers Cervical cancer 400 pers. Healthy Death 200 pers. Screening 500.000 pers. No vaccine Pre-cancer 4000 pers.
Probability of going from onestate to anotherwithout vaccine
Probability of going from onestate to anotherwith the vaccine. 70% reduction of cases
Markov Models • Comparison of 2 Markov models • One without vaccine • One with vaccine
CostEffectiveness Ratio Cost new – Costexisting Effect new – Effectexisting (1325+3500) – 3826 = 3700 kr./QALY 39,18 – 38,91
Conclusion • Is it costeffective to vaccinateyounggirlsagainst HPV to preventcervical cancer? Yes • Wegain 0,27 QALY’s at the cost of 999 kr