Table 2 Fitted model parameters
From: Developing a realistic sexual network model of chlamydia transmission in Britain
Parameter | Best fit or estimated value | Limits of 95% CI | Range (increment) | Source |
|---|---|---|---|---|
Behavioural parameters | ||||
Proportion that switch from desiring short to long partnerships per year | Fitted to Natsal 2000 [19] | |||
   Men | 0.04 | 0.02–0.06 | 0.0–0.08 | |
   Women | 0.08 | 0.06–0.08 | 0.04–0.12 (0.02) | |
Initial proportion of 16 year olds desiring short partnerships | Fitted to Natsal 2000 [19] | |||
   Men | 0.6 | 0.5–0.7 | 0.4–0.8 | |
   Women | 0.5 | 0.4–0.6 | 0.3–0.7 (0.1) | |
Mean duration in days of long partnerships (16 year olds) | 900 | Based on exploratory fitting to Natsal 2000 [19] | ||
Increase in partnership duration per year, in days | 200 | Based on exploratory fitting to Natsal 2000 [19] | ||
Infection parameters | ||||
Transmission probability per sex act | 0.0375 | 0.035–0.04 | 0.035–0.05 (0.0025) | Fitted to Natsal 2000 [19] & Adams et al [1] |
Proportion seeking treatment | Fitted to Natsal 2000 [19] & Adams et al [1] | |||
   Men | 0.0 | 0.04–0.05 | 0–0.05 | |
   Women | 0.045 | 0–0.005 | 0–0.055 (0.005) | |
Health care parameters | ||||
Proportion of partners notified | 0.2 | 0.1–0.25 | 0.0–0.5 (0.05) | Fitted to Natsal 2000 [21] & Adams et al [1] |