Metadata

Name Scleritis and episcleritis (scleritis)
Category Eye
Sex
Adult Yes
UUID 804d815f-3025-4e8c-9c12-fd273341dcd1
Definition Inflammation of the sclera or episclera.

Ontologies

Disease Ontology (DOID) DOID_13452
MeSH D015423
SNOMED-CT 267659002
FinnGen H7_SCLERITISEPISCLERITIS

Key Summary Statistics

Cases from any source

Total 785
Female (%) 517 (66%)
Male (%) 268 (34%)

Year first recorded

scleritis year of first event

Cases linked in all UK Biobank sources

Cross-source concordance

Vertical bars correspond to number of cases per source/intersection; horizontal bars to left correspond to total number of cases per source.

Cross-sourced scleritis cases

Incidence & prevalence

Sex and age-stratified incidence and prevalence of scleritis

Baseline prevalence stratified by sex

Female 24.64 (21.3,27.97)
Male 15.82 (12.9,18.73)

Incidence stratified by sex

Female 1.2 (0.91,1.48)
Male 0.72 (0.48,0.96)

Incidence stratified by age

Ages 40-44 1.31 (0.6,2.02)
Ages 45-49 1.19 (0.61,1.77)
Ages 50-54 1.27 (0.71,1.82)
Ages 55-59 0.36 (0.09,0.63)
Ages 60-64 1.04 (0.65,1.43)
Ages 65-69 0.96 (0.53,1.39)

Period prevalence

Methods

Comparison with general population

Sex-standardised prevalence from CALIBER study (Kuan et al. 2019)

CALIBER and UKB scleritis prevalence comparison for multiple age groups

Population Ages 40-49 Ages 50-59 Ages 60-69
UK Biobank 20 (16,25) 30 (26,34) 32 (28,36)
CALIBER 56 (54,58) 75 (72,77) 79 (76,81)

Stratified by age and Townsend deprivation status

Deprivation status Ages 40-49 Ages 50-59 Ages 60-69
Least deprived 23(13,37) 29(21,40) 39(31,49)
Low 21(12,35) 33(24,44) 27(20,35)
Medium 16(8,27) 31(22,42) 28(21,37)
High 24(15,37) 31(22,42) 31(23,40)
Most deprived 17(10,27) 25(17,34) 34(26,44)

Stratified by age and country

Country Ages 40-49 Ages 50-59 Ages 60-69
England 14(10,18) 23(19,28) 25(21,28)
Scotland 29(16,48) 34(23,49) 48(36,62)
Wales 76(48,114) 88(65,117) 82(62,106)

Risk factors analysis

‘Healthy’ BMI, smoking status ‘never’, or no hypertension (absence of hypertension records) were considered as reference values.

Hazard Ratio (HR) values with P < 0.0002 were considered to show significant association with disease onset after correction for multiple-testing using the Bonferroni method

N=153508, Events=407

Factor Level Hazard Ratio P value
BMI overweight 0.96 (0.75, 1.22) 0.716
BMI obese 1.36 (1.06, 1.76) 0.0167
BMI underweight 0 (0, Inf) 0.986
smoking previous 1.37 (1.1, 1.7) 0.00438
smoking current 2.14 (1.6, 2.85) 2.26e-07
hypertension yes 1.88 (1.53, 2.31) 1.47e-09

Risk factors analysis forest plot

Definition

UK Biobank field id Description Code Value
41202 Diagnoses - main ICD10 H15.0 Scleritis
41202 Diagnoses - main ICD10 H15.1 Episcleritis
41202 Diagnoses - main ICD10 H19.0 Scleritis and episcleritis in diseases classified elsewhere
41204 Diagnoses - secondary ICD10 H15.0 Scleritis
41204 Diagnoses - secondary ICD10 H15.1 Episcleritis
41204 Diagnoses - secondary ICD10 H19.0 Scleritis and episcleritis in diseases classified elsewhere
40001 Underlying (primary) cause of death: ICD10 H15.0 Scleritis
40001 Underlying (primary) cause of death: ICD10 H15.1 Episcleritis
40001 Underlying (primary) cause of death: ICD10 H19.0 Scleritis and episcleritis in diseases classified elsewhere
40002 Contributory (secondary) causes of death: ICD10 H15.0 Scleritis
40002 Contributory (secondary) causes of death: ICD10 H15.1 Episcleritis
40002 Contributory (secondary) causes of death: ICD10 H19.0 Scleritis and episcleritis in diseases classified elsewhere
42040 GP clinical event records F4K0000 Unspecified scleritis
42040 GP clinical event records F4K0100 Episcleritis periodica fugax
42040 GP clinical event records F4K0200 Nodular episcleritis
42040 GP clinical event records F4K0300 Anterior scleritis
42040 GP clinical event records F4K0400 Scleromalacia perforans
42040 GP clinical event records F4K0500 Sclerokeratitis
42040 GP clinical event records F4K0600 Brawny scleritis
42040 GP clinical event records F4K0700 Posterior scleritis
42040 GP clinical event records F4K0711 Sclerotenonitis
42040 GP clinical event records F4K0.00 Scleritis and episcleritis
42040 GP clinical event records F4K0.11 Episcleritis
42040 GP clinical event records F4K0.12 Scleritis
42040 GP clinical event records F4K0z00 Scleritis or episcleritis NOS
42040 GP clinical event records FyuD800 [X]Scleritis+episcleritis in diseases CE
42040 GP clinical event records XE171 Posterior scleritis
42040 GP clinical event records F4A52 Sclerokeratitis
42040 GP clinical event records XE170 Scleritis and episcleritis