Metadata

Name Atrioventricular block, complete (av_block_3)
Category Cardiovascular
Sex
Adult Yes
UUID ca8012a0-8cab-47ee-bc87-8717817d32f8
Definition An atrioventricular block that is characterized by bradycardia, hypotension, hemodynamic instability and complete dissociation between P waves and QRS complexes on electrocardiogram caused when conduction fails to propagate from atria to ventricles.

Ontologies

Disease Ontology (DOID) DOID_0050823
GWAS Catalogue MONDO_0000468
MeSH D054537
SNOMED-CT 27885002

Key Summary Statistics

Cases from any source

Total 1831
Female (%) 531 (29%)
Male (%) 1300 (71%)

Year first recorded

av_block_3 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 av_block_3 cases

Incidence & prevalence

Sex and age-stratified incidence and prevalence of av_block_3

Baseline prevalence stratified by sex

Female 3.3 (2.08,4.52)
Male 6.86 (4.94,8.78)

Incidence stratified by sex

Female 0.77 (0.54,1.0)
Male 2.17 (1.75,2.59)

Incidence stratified by age

Ages 40-44 0.4 (0.01,0.8)
Ages 45-49 0.37 (0.05,0.7)
Ages 50-54 0.44 (0.11,0.77)
Ages 55-59 1.14 (0.67,1.62)
Ages 60-64 1.31 (0.87,1.74)
Ages 65-69 3.77 (2.92,4.62)

Period prevalence

Methods

Comparison with general population

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

CALIBER and UKB av_block_3 prevalence comparison for multiple age groups

Population Ages 40-49 Ages 50-59 Ages 60-69
UK Biobank 4 (2,7) 6 (4,8) 23 (20,27)
CALIBER 3 (2,3) 7 (7,8) 23 (22,25)

Stratified by age and Townsend deprivation status

Deprivation status Ages 40-49 Ages 50-59 Ages 60-69
Least deprived 3(0,9) 5(2,11) 20(15,28)
Low 0(NaN,NaN) 5(2,11) 24(18,32)
Medium 5(1,13) 6(3,13) 26(19,35)
High 7(2,15) 5(2,11) 22(15,30)
Most deprived 5(2,11) 7(3,13) 24(16,33)

Stratified by age and country

Country Ages 40-49 Ages 50-59 Ages 60-69
England 4(2,6) 6(4,9) 23(20,27)
Scotland 7(2,18) 0(NaN,NaN) 13(7,22)
Wales 3(0,17) 12(4,26) 39(26,57)

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=153996, Events=147

Factor Level Hazard Ratio P value
BMI overweight 0.93 (0.63, 1.37) 0.695
BMI obese 1 (0.64, 1.55) 0.987
BMI underweight 0 (0, Inf) 0.994
smoking previous 1.24 (0.87, 1.76) 0.231
smoking current 1.53 (0.9, 2.59) 0.116
hypertension yes 1.65 (1.18, 2.3) 0.00322

Definition

UK Biobank field id Description Code Value
41202 Diagnoses - main ICD10 I44.2 Atrioventricular block, complete
41204 Diagnoses - secondary ICD10 I44.2 Atrioventricular block, complete
40001 Underlying (primary) cause of death: ICD10 I44.2 Atrioventricular block, complete
40002 Contributory (secondary) causes of death: ICD10 I44.2 Atrioventricular block, complete
42040 GP clinical event records 3293.00 ECG:complete sinu-atrial block
42040 GP clinical event records 3298.00 ECG: complete A-V block
42040 GP clinical event records G560.00 Complete atrioventricular block
42040 GP clinical event records G560.11 Third degree atrioventricular block