func conditionEvent(id, name, icd9Code string, onset time.Time) plugin.Event {
condition := new(models.Condition)
condition.Id = id
condition.Code = &models.CodeableConcept{
Coding: []models.Coding{
models.Coding{System: "http://hl7.org/fhir/sid/icd-9", Code: icd9Code, Display: name},
},
Text: name,
}
condition.OnsetDateTime = &models.FHIRDateTime{Time: onset, Precision: models.Timestamp}
condition.VerificationStatus = "confirmed"
return plugin.Event{
Date: onset,
Type: "Condition",
End: false,
Value: condition,
}
}
func generateCondition(name string, yearOffset int, md []ConditionMetadata) models.Condition {
c := models.Condition{VerificationStatus: "confirmed"}
cmd := conditionByName(name, md)
c.Code = &models.CodeableConcept{Coding: []models.Coding{{Code: cmd.ICD9, System: "http://hl7.org/fhir/sid/icd-9"}}, Text: cmd.Display}
c.OnsetDateTime = &models.FHIRDateTime{Time: randomOnset(yearOffset), Precision: models.Date}
recoveryDiceRoll := rand.Intn(100)
if recoveryDiceRoll <= cmd.AbatementChance {
switch cmd.RecoveryEstimate {
case "week":
c.AbatementDateTime = &models.FHIRDateTime{Time: c.OnsetDateTime.Time.AddDate(0, 0, 7), Precision: models.Date}
case "threeMonths":
c.AbatementDateTime = &models.FHIRDateTime{Time: c.OnsetDateTime.Time.AddDate(0, 3, 0), Precision: models.Date}
case "sixMonths":
c.AbatementDateTime = &models.FHIRDateTime{Time: c.OnsetDateTime.Time.AddDate(0, 6, 0), Precision: models.Date}
case "threeYears":
c.AbatementDateTime = &models.FHIRDateTime{Time: c.OnsetDateTime.Time.AddDate(3, 0, 0), Precision: models.Date}
}
}
return c
}
func GenerateConditions(ctx Context, md []ConditionMetadata) []models.Condition {
conditions := []models.Condition{}
if ctx.Hypertention == "Hypertension" {
ht := generateCondition("Hypertension", 2, md)
conditions = append(conditions, ht)
complication := rand.Intn(5)
if complication == 1 {
chf := models.Condition{VerificationStatus: "confirmed"}
chfmd := conditionByName("Congestive Heart Failure", md)
chf.Code = &models.CodeableConcept{Coding: []models.Coding{{Code: chfmd.ICD9, System: "http://hl7.org/fhir/sid/icd-9"}}, Text: chfmd.Display}
chf.OnsetDateTime = &models.FHIRDateTime{Time: ht.OnsetDateTime.Time.AddDate(rand.Intn(2), rand.Intn(10), rand.Intn(28)), Precision: models.Date}
conditions = append(conditions, chf)
}
if complication == 2 {
phd := models.Condition{VerificationStatus: "confirmed"}
phdmd := conditionByName("Pulmonary Heart Disease", md)
phd.Code = &models.CodeableConcept{Coding: []models.Coding{{Code: phdmd.ICD9, System: "http://hl7.org/fhir/sid/icd-9"}}, Text: phdmd.Display}
phd.OnsetDateTime = &models.FHIRDateTime{Time: ht.OnsetDateTime.Time.AddDate(rand.Intn(2), rand.Intn(10), rand.Intn(28)), Precision: models.Date}
conditions = append(conditions, phd)
}
}
if ctx.Diabetes == "Diabetes" {
dia := generateCondition("Diabetes", 2, md)
conditions = append(conditions, dia)
}
if ctx.Smoker == "Smoker" {
complication := rand.Intn(5)
if complication == 1 {
e := generateCondition("Emphysema", 2, md)
conditions = append(conditions, e)
}
if complication == 2 {
lc := generateCondition("Lung Cancer", 2, md)
conditions = append(conditions, lc)
}
}
// per http://www.cdc.gov/dhdsp/data_statistics/fact_sheets/fs_atrial_fibrillation.htm
var afibChance int
if time.Now().AddDate(-65, 0, 0).After(ctx.BirthDate) {
afibChance = 9
} else {
afibChance = 2
}
afibDiceRoll := rand.Intn(100)
if afibDiceRoll <= afibChance {
afib := generateCondition("Atrial Fibrillation", 3, md)
conditions = append(conditions, afib)
}
otherConditions := rand.Intn(3)
previouslySelected := &intsets.Sparse{}
for index := 0; index < otherConditions; index++ {
randomCondition := 2 + rand.Intn(76)
if !previouslySelected.Has(randomCondition) {
rmd := conditionByID(randomCondition, md)
rc := generateCondition(rmd.Display, index, md)
previouslySelected.Insert(randomCondition)
conditions = append(conditions, rc)
}
}
return conditions
}