Table 2. Parameters for screening and treatment model.

Screening parameters	Baseline parameter value		Scenario analysis range	Reference for baseline parameter value
Screening coverage	Age	Coverage	Extend screening to women aged 65–79 years	Department of Health, 2001
	25–29	77.0%
	30–34	83.0%
	35–39	85.0%	Increase coverage to 77% in women aged 20–24
	40–44	85.5%
	45–49	86.0%
	50–55	85.0%
	55–59	82.5%
	60–64	77.5%
	(average rate 83% over 5 years)
Screening interval	3–5 years		2003 recommendations: no screening ages 20–24; 3 years ages 25–49; 5 years ages 50–64	Department of Health, 2001; Sasieni et al, 2003
Pap sensitivity	55.6%		40–90%	Nanda et al, 2000
Proportion HPV-positive post treatment	27%		—	Bodner et al, 2002
Treatment success (failure due to noncompliance or misdiagnosis)	90%		—	—