Package index • HealthMarkers

Dispatcher functions

Compute many marker groups at once and return a single wide tibble.

all_health_markers(): Compute all available HealthMarkers categories
all_insulin_indices(): Compute insulin sensitivity/resistance panels (fasting, OGTT, adipose, tracer/DXA)
metabolic_markers(): Aggregate selected metabolic marker groups

Fasting, OGTT, adipose-tissue, tracer and DXA-based indices.

fasting_is(): Calculate fasting-based insulin sensitivity indices
ogtt_is(): Calculate OGTT-based insulin sensitivity indices
adipo_is(): Adipose insulin sensitivity indices (QUICKI, VAI, LAP, TyG, TG/HDL, Belfiore)
tracer_dxa_is(): Compute tracer/DXA-based insulin sensitivity indices

glycemic_markers(): Calculate glycemic-, C-peptide-, and additional metabolic markers
lipid_markers(): Calculate lipid-panel markers, Visceral Adiposity Index (VAI), Lipid Accumulation Product (LAP), and TyG-BMI index
atherogenic_indices(): Compute atherogenic indices
cvd_marker_aip(): Atherogenic Index of Plasma (AIP)
cvd_marker_ldl_particle_number(): LDL Particle Number Estimate (via ApoB)

liver_markers(): Compute liver-related indices (FLI, NFS, APRI, FIB-4, BARD, ALBI, MELD-XI) with validation and diagnostics
liver_fat_markers(): Liver fat surrogates: HSI and NAFLD Liver Fat Score

metss(): Metabolic Syndrome Severity Score (MetSSS)
metabolic_risk_features(): Calculate metabolic risk feature flags (pediatric-friendly thresholds)
allostatic_load(): Allostatic Load Index

kidney_failure_risk(): Kidney Failure Risk Equation (KFRE, 2- and 5-year risk)
renal_markers(): Calculate a Suite of Renal Function, Injury, and Excretion Markers
ckd_stage(): CKD staging (GFR and albuminuria) and KDIGO risk
urine_markers(): Calculate urine-only renal and tubular markers (research-ready)

pulmo_markers(): Calculate pulmonary function markers (FEV1/FVC, z-scores, percent predicted, LLN, etc.)
spirometry_markers(): Spirometry markers: FEV1/FVC, LLN-based obstruction, GOLD grade, bronchodilator response
bode_index(): BODE Index (BMI, Obstruction, Dyspnea, Exercise capacity)

inflammatory_markers(): Compute inflammatory indices (classic, eosinophil, or both)
iAge(): Compute a simplified Inflammatory Age Index (iAge) with QA and verbose summaries
oxidative_markers(): Oxidative stress markers
kyn_trp_ratio(): Kynurenine/Tryptophan Ratio (KTR)

hormone_markers(): Compute a suite of hormone ratio markers with QA and verbose summaries

obesity_indices(): Compute anthropometric obesity & adiposity indices
adiposity_sds(): Calculate standardized scores (SDS) for adiposity measures
adiposity_sds_strat(): Compute sex-stratified standardized scores (SDS) for adiposity measures
alm_bmi_index(): Appendicular Lean Mass to BMI Index
calc_sds(): Calculate Standard Deviation Scores (SDS; z-scores) for health markers

frailty_index(): Compute Frailty (Deficit) Index using di::di with QA and verbose summaries
charlson_index(): Charlson Comorbidity Index (CCI)
sarc_f_score(): SARC-F Sarcopenia Screening Score

vitamin_markers(): Compute composite vitamin and endocrine marker ratios and z-scores
vitamin_d_status(): Vitamin D Status Category
nutrient_markers(): Compute a Suite of Nutrient-Based Health Markers

infer_cols() hm_infer_cols(): Infer column names from user data based on flexible patterns, with logging
impute_missing(): Impute missing values in a data.frame or tibble (simple, column-wise)
impute_mice(): Impute missing values via Multiple Imputation (mice)
impute_missforest(): Impute missing values via random forest (missForest)
normalize_vec(): Normalize a numeric vector
validate_inputs(): Validate required inputs for a calling function
marker_summary(): Summarize marker outputs
health_summary(): Summarize selected numeric marker columns
plot_frailty_age(): Plot FI vs age (convenience wrapper)