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Table 2 Baseline parameter values used during model calibrations.

From: Current crisis or artifact of surveillance: insights into rebound chlamydia rates from dynamic modelling

Parameter

Description

Value (units)

References

The mean number of susceptible individuals infected with chlamydia per year by an index case.

0.8-10

(1/year)

[27]

1/σ

Average duration of natural infection.

1.25* (years)

[27–30]

1/σ'

Average duration of infection when treated.

0.038* (years)

[5]

φ

Diagnostic test sensitivity.

0.50-0.92

[7]

φ'

Diagnostic test specificity.

0.98-1.0

[7]

1/μ

Average duration of sexual activity.

15† (years)

[17, 18]

1/δ

Average duration removed.

0.5-10† (years)

[6, 21]

n I

Number of infectives tested.

Calculated

 

n S

Number of susceptibles tested.

Calculated

 
  1. *Fixed value based on references cited; † Assumption of parameter value based on references cited.