# https://github.com/r-lib/pkgdown/issues/2704

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Calculate ESC 2024 PTP for obstructive CAD

Source: R/esc_2024_conference_ptp.R
calculate_esc_2024_fig_4_ptp.Rd

This function returns a patient's pre-test Probability (PTP) of obstructive coronary artery disease (CAD) based on the European Society of Cardiology (ESC) 2024 guidelines.

Usage

calculate_esc_2024_fig_4_ptp(
  age,
  sex,
  chest_pain_type,
  have_dyspnoea,
  have_family_history,
  have_smoking_history,
  have_dyslipidemia,
  have_hypertension,
  have_diabetes,
  allow_na_symptom_score = TRUE,
  max_na_num_of_rf = 0,
  output = c("grouping", "numeric", "percentage")
)

Arguments

age

Input integer value to indicate the age of the patient.

sex

Input characters (female, male) to indicate the sex of the patient.

  • female

  • male

chest_pain_type

Input characters (no chest pain, typical, atypical, nonanginal) to indicate the chest pain characteristics of the patient.

  • no chest pain stands for the patient having no chest pain.

  • typical stands for the patient having typical chest pain.

  • atypical stands for the patient having atypical chest pain.

  • nonanginal stands for the patient having nonanginal or non-specific chest pain.

have_dyspnoea

Input characters (no, yes) to indicate if the patient only has dyspnoea symptoms.

  • no stands for not having dyspnoea symptoms.

  • yes stands for having dyspnoea symptoms.

have_family_history

Input characters (no, yes) to indicate if the patient only has a family history of CAD.

  • no stands for not having a family history of CAD.

  • yes stands for having a family history of CAD.

have_smoking_history

Input characters (no, yes) to indicate if the patient only has a smoking history (current or past smoker).

  • no stands for not having a smoking history (non-smoker).

  • yes stands for having a smoking history (current or past smoker).

have_dyslipidemia

Input characters (no, yes) to indicate if the patient only has dyslipidemia.

  • no stands for not having dyslipidemia.

  • yes stands for having a dyslipidemia.

have_hypertension

Input characters (no, yes) to indicate if the patient only has hypertension.

  • no stands for not having hypertension.

  • yes stands for having a hypertension.

have_diabetes

Input characters (no, yes) to indicate if the patient only has diabetes.

  • no stands for not having diabetes.

  • yes stands for having diabetes.

allow_na_symptom_score

A logical evaluating to TRUE or FALSE indicating whether we can allow chest_pain_type or have_dyspnoea to be NA when calculating the score

max_na_num_of_rf

Input integer 0 to 5 to indicate the maximum number of missing risk factors to tolerate before outputting an NA. Default: 0

output

Input text to indicate the how pre-test probability results be expressed Default: c("grouping", "numeric", "percentage")

  • grouping means the PTP will be expressed as Low, Intermediate and High.

    • very low if PTP is less than or equal to 5%.

    • low if PTP is in between 6% to 15%.

    • moderate if PTP is more than 15%.

  • numeric means the PTP will be expressed as an integer probability (0-100).

  • percentage means the PTP will be expressed as percentage text (0-100%).

Value

An integer, percentage or category representing the patient's PTP for obstructive CAD based on the ESC 2024 guidelines. See parameter option output for more information.

Examples

# 30 female with symptom score of 0 and 0 risk factors
calculate_esc_2024_fig_4_ptp(
  age = 30,
  sex = "female",
  chest_pain_type = "no chest pain",
  have_dyspnoea = "no",
  have_family_history = "no",
  have_smoking_history = "no",
  have_dyslipidemia = "no",
  have_hypertension = "no",
  have_diabetes = "no",
  allow_na_symptom_score = TRUE,
  max_na_num_of_rf = 0,
  output = "percentage"
)
#> [1] "0%"