Chapter 2

The Global Burden: Prevalence and Mortality Statistics

Data derived from the Global Burden of Disease Study 2021, WHO surveillance reports, and the Lancet eClinicalMedicine 2023 report. All visualizations © Dr. Pedro A. Deliz, MD.

10%

Global population affected

2.6×

Higher mortality in Lupus (SMR)

78%

Female predominance

+19%/yr

Annual incidence increase

Figure 2.1

Global Prevalence by Country

Finland (10.9%), Norway (10.8%), and Sweden (10.6%) lead globally. The United States ranks 7th at 9.8%. Sub-Saharan Africa reports the lowest rates at 1.5–2.5%, though these figures are likely underreported due to limited diagnostic infrastructure.

Figure 2.1: Global Prevalence of Autoimmune Diseases by Country — © Dr. Pedro A. Deliz, MD | Sources: GBD 2021, WHO, Lancet eClinicalMedicine 2023

Figure 2.2

Autoimmune Disease Prevalence by Continent

Autoimmune Disease Prevalence by Continent — © Dr. Pedro A. Deliz, MD

Figure 2.3

Disease Prevalence and Mortality Rates

Disease Prevalence and Mortality Rates — © Dr. Pedro A. Deliz, MD

Figure 2.4

Gender Disparity Across Autoimmune Diseases

Gender Disparity Across Autoimmune Diseases — © Dr. Pedro A. Deliz, MD

Figure 2.5

Rising Global Trend 1990–2026

Figure 2.6

Top 20 Countries by Autoimmune Prevalence

Mortality Data

Standardized Mortality Ratios by Disease

Disease	SMR	Primary Cause of Death
Systemic Sclerosis / Vasculitis	3.50×	Pulmonary fibrosis, renal crisis
Systemic Lupus (SLE)	2.60×	Cardiovascular disease, lupus nephritis
Multiple Sclerosis	2.10×	Infections, respiratory failure
Rheumatoid Arthritis	1.55×	Cardiovascular disease
Inflammatory Bowel Disease	1.40×	Colorectal cancer, infections
Hashimoto's Thyroiditis	1.20×	Cardiovascular disease (if undertreated)
Psoriasis / Psoriatic Arthritis	1.15×	Cardiovascular disease, metabolic syndrome

SMR = Standardized Mortality Ratio (vs. general population). Sources: GBD 2021, NIH PMC7937014, Oxford University Study 2023.