Metadata

Name Right bundle branch block (RBBB)
Category Cardiovascular
Sex
Adult Yes
UUID 4b9f0e19-0881-4f93-a6c6-fd312f3f2305
Definition A heart block in the right bundle branch of the electrical conduction system.

Ontologies

Disease Ontology (DOID) DOID_13209
SNOMED-CT 59118001
FinnGen I9_RBBB

Key Summary Statistics

Cases from any source

Total 5656
Female (%) 1729 (31%)
Male (%) 3927 (69%)

Year first recorded

RBBB 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 RBBB cases

Incidence & prevalence

Sex and age-stratified incidence and prevalence of RBBB

Baseline prevalence stratified by sex

Female 11.79 (9.48,14.1)
Male 31.78 (27.65,35.91)

Incidence stratified by sex

Female 3.4 (2.92,3.88)
Male 8.9 (8.05,9.75)

Incidence stratified by age

Ages 40-44 1.91 (1.05,2.77)
Ages 45-49 2.3 (1.49,3.11)
Ages 50-54 3.17 (2.29,4.05)
Ages 55-59 5.37 (4.33,6.4)
Ages 60-64 7.01 (5.99,8.03)
Ages 65-69 11.57 (10.07,13.07)

Period prevalence

Methods

Comparison with general population

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

CALIBER and UKB RBBB prevalence comparison for multiple age groups

Population Ages 40-49 Ages 50-59 Ages 60-69
UK Biobank 26 (21,32) 38 (34,44) 83 (77,89)
CALIBER 17 (16,18) 34 (32,35) 72 (69,75)

Stratified by age and Townsend deprivation status

Deprivation status Ages 40-49 Ages 50-59 Ages 60-69
Least deprived 26(15,41) 33(24,45) 70(58,83)
Low 24(13,39) 37(27,50) 76(64,90)
Medium 26(16,41) 41(30,54) 88(75,102)
High 35(23,50) 36(26,49) 81(68,96)
Most deprived 19(11,29) 45(34,58) 102(86,119)

Stratified by age and country

Country Ages 40-49 Ages 50-59 Ages 60-69
England 28(22,34) 41(35,47) 87(80,94)
Scotland 12(4,26) 21(13,34) 61(47,78)
Wales 30(14,57) 42(26,65) 74(55,98)

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=154060, Events=218

Factor Level Hazard Ratio P value
BMI overweight 0.89 (0.65, 1.23) 0.488
BMI obese 1.16 (0.82, 1.63) 0.404
BMI underweight 0 (0, Inf) 0.989
smoking previous 1.75 (1.31, 2.35) 0.000182
smoking current 2.37 (1.58, 3.55) 3.07e-05
hypertension yes 1 (0.74, 1.36) 0.997

Risk factors analysis forest plot

Definition

UK Biobank field id Description Code Value
41202 Diagnoses - main ICD10 I45.1 Other and unspecified right bundle-branch block
41204 Diagnoses - secondary ICD10 I45.1 Other and unspecified right bundle-branch block
40001 Underlying (primary) cause of death: ICD10 I45.1 Other and unspecified right bundle-branch block
40002 Contributory (secondary) causes of death: ICD10 I45.1 Other and unspecified right bundle-branch block
42040 GP clinical event records 3299.00 ECG: right bundle branch block
42040 GP clinical event records G564.00 Right bundle branch block
42040 GP clinical event records G566200 Right fascicular block
42040 GP clinical event records G56y400 Right fascicular block
42040 GP clinical event records Gyu5W00 [X]Other and unspecified right bundle-branch block