Table 2

Parameter estimates, incidence estimates and 95% confidence intervals (based on both the original and imputed data), Lazio, Italy, 2004-2008

Original data

Imputed data

Repeat testers

New testers

Repeat testers

New testers


r

190

55

620

301

p1

0.522

0.136

0.398

0.205

p2

0.696

0.585

1

1

Incidence estimate

946

1,250

2,818

2,647

(95% CI)

(857-1,035)

(966-1,534)

(2,305-3,426)

(1,739-3,593)

Diagnoses

790

815

1,646

1,987

Total incidence estimate (95% CI)

4,968

(4,356-5,441)

5,465

(4,538-6,461)

Estimated incidence rate*

21.1

23.8


* per 100,000 person-years; estimates refer to the mean population (aged 15 or older) in the region of Lazio during the period 2004-2008.

mean values from 20 imputations.

P3 = 202/365.25 = 0.553.

CI, Confidence Interval.

Mammone et al. BMC Infectious Diseases 2012 12:65   doi:10.1186/1471-2334-12-65

Open Data