Diagnosis-Treated

Name: DT

Description: Framework for a simple 2-stage diagnosed-treated model

Compartments

Compartment: Diagnosed, not treated

  • Code name: dx
  • Does not appear in the databook
  • Description:
  • Data entry guidance:

Compartment: Treated

  • Code name: tx
  • Does not appear in the databook
  • Description:
  • Data entry guidance:

Characteristics

Characteristic: All diagnosed

  • Code name: all_dx
  • Value can be used for calibration
  • Includes:
    • Diagnosed, not treated
    • Treated
  • Appears in the databook
  • Databook values will be used for model initialization
  • Description:
  • Data entry guidance:

Characteristic: Currently treated

  • Code name: all_tx
  • Value can be used for calibration
  • Includes:
    • Treated
  • Appears in the databook
  • Databook values will be used for model initialization
  • Description:
  • Data entry guidance:

Parameters

Parameter: Annual number newly initiated onto treatment

  • Code name: initiate
  • Value can be used for calibration
  • Units/format: number
  • Value restrictions: At least 0
  • Contributes to transitions from:
    • “Diagnosed, not treated” to “Treated”
  • Default value: None
  • Appears in the databook
  • Description:
  • Data entry guidance:

Parameter: Annual number lost to follow-up

  • Code name: num_loss
  • Units/format: number
  • Value restrictions: At least 0
  • Default value: None
  • Appears in the databook
  • Used to compute:
    • “Proportion of those on treatment lost-to-follow-up”
  • Description:
  • Data entry guidance:

Parameter: Proportion of those on treatment lost-to-follow-up

  • Code name: loss
  • Value can be used for calibration
  • Units/format: probability
  • Value restrictions: 0-1.0000
  • Contributes to transitions from:
    • “Treated” to “Diagnosed, not treated”
  • Default value: None
  • Does not appear in the databook
  • This parameter’s value is computed by a function: num_loss/tx
  • Depends on:
    • “Treated”
    • “Annual number lost to follow-up”
  • Description:
  • Data entry guidance:

Interactions

Cascades

Cascade: Cascade

  • Description:
  • Stages:
    • All diagnosed
      • All diagnosed
    • Currently treated
      • Currently treated