Hearing Loss: what evidence wins at the Board

For hearing loss appeals, how often the Board granted the issue when the record held each kind of evidence, and how often when it did not. Measured from the decisions themselves; every number carries its fraction.

What this is computed from: evidence types detected in the full text of 1,907,778 public Board of Veterans' Appeals decisions (va.gov/vetapp), joined to the issue-level outcome. The tables use only single-issue decisions with a clean parse in complete crawl years (1993–2025) — 852,152 decisions — so each evidence flag attaches to exactly one decided issue. A split is shown only when both sides have at least 30 decisions. Data build: 2026-09-02.

Service connection for Hearing Loss (n = 29,423)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record65% (2,661/4,087)40% (7,061/17,820)+25 pts11% (518/4,628)
Private physician opinion, letter or DBQEvidence in the record59% (2,558/4,348)41% (7,164/17,559)+18 pts9% (427/4,821)
Disability Benefits Questionnaire in the recordEvidence in the record55% (355/650)44% (9,367/21,257)+11 pts27% (240/893)
Third-party lay statements (spouse, buddy, employer)Evidence in the record45% (588/1,314)44% (9,134/20,593)+0 pts8% (119/1,455)
Service treatment records document the condition or injuryEvidence in the record40% (2,922/7,255)46% (6,800/14,652)-6 pts10% (846/8,245)
Service treatment records silent for the conditionEvidence in the record33% (2,688/8,135)51% (7,034/13,772)-18 pts6% (525/8,800)
Continuity of symptoms argued (38 CFR 3.303(b))Theory argued40% (4,469/11,156)49% (5,253/10,751)-9 pts4% (426/11,657)
Board hearing held or testimony takenProcedure46% (5,517/12,010)42% (4,205/9,897)+3 pts17% (2,479/14,990)
Social Security records in the fileEvidence in the record25% (96/387)45% (9,626/21,520)-20 pts12% (53/455)
Vocational expert or assessmentEvidence in the record32% (13/40)44% (9,709/21,867)-12 pts12% (6/48)
Medical literature or treatise citedEvidence in the record34% (904/2,658)46% (8,818/19,249)-12 pts28% (1,025/3,696)
Functional loss / DeLuca factors argued (rating cases)Theory argued31% (231/737)45% (9,491/21,170)-13 pts8% (68/829)
Presumptive service connection discussedTheory argued37% (5,337/14,376)58% (4,385/7,531)-21 pts3% (395/14,884)
Secondary service connection (38 CFR 3.310) in playTheory argued42% (1,261/3,025)45% (8,461/18,882)-3 pts19% (717/3,869)
Combat service / 1154(b) in playTheory argued46% (2,157/4,653)44% (7,565/17,254)+3 pts8% (422/5,140)
A medical source gave a negative nexus opinionEvidence in the record50% (6,327/12,668)37% (3,395/9,239)+13 pts22% (3,556/16,284)
No nexus opinion of recordEvidence in the record21% (281/1,331)46% (9,441/20,576)-25 pts3% (39/1,396)
VA examination or VA medical opinion obtainedEvidence in the record45% (8,882/19,876)41% (840/2,031)+3 pts21% (5,262/25,425)
Board found a VA exam or opinion inadequateHow the Board read the record57% (3,439/6,051)40% (6,283/15,856)+17 pts36% (3,481/9,587)
Board found the VA exam or opinion adequateHow the Board read the record12% (217/1,739)47% (9,505/20,168)-35 pts1% (23/1,771)
Board found the veteran's statements credibleHow the Board read the record75% (2,779/3,729)38% (6,943/18,178)+36 pts2% (92/3,840)
Board found the veteran's statements not credible or inconsistentHow the Board read the record10% (67/650)45% (9,655/21,257)-35 pts3% (17/669)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record92% (5,348/5,800)27% (4,374/16,107)+65 pts0% (27/5,849)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record5% (405/8,323)69% (9,317/13,584)-64 pts0% (6/8,375)
Duty-to-assist error foundHow the Board read the record46% (98/213)44% (9,624/21,694)+2 pts84% (1,214/1,438)
Board ordered a new exam or addendum opinionProcedure38% (989/2,577)45% (8,733/19,330)-7 pts65% (5,016/7,693)
AMA favorable finding acknowledgedProcedure65% (1,047/1,620)43% (8,675/20,287)+22 pts26% (572/2,197)

"Granted" = share of issues decided on the merits (granted + denied); remands and dismissals are excluded from that fraction and shown separately. Fractions are the raw counts.

Increased rating for Hearing Loss (n = 12,148)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record11% (13/120)4% (370/8,995)+7 pts8% (12/144)
Private physician opinion, letter or DBQEvidence in the record9% (44/510)4% (339/8,605)+5 pts10% (60/593)
Disability Benefits Questionnaire in the recordEvidence in the record7% (17/247)4% (366/8,868)+3 pts38% (151/402)
Third-party lay statements (spouse, buddy, employer)Evidence in the record6% (16/272)4% (367/8,843)+2 pts5% (15/289)
Service treatment records document the condition or injuryEvidence in the record11% (72/650)4% (311/8,465)+7 pts7% (51/754)
Service treatment records silent for the conditionEvidence in the record18% (46/253)4% (337/8,862)+14 pts4% (12/302)
Continuity of symptoms argued (38 CFR 3.303(b))Theory argued20% (45/228)4% (338/8,887)+16 pts5% (12/262)
Board hearing held or testimony takenProcedure5% (204/4,387)4% (179/4,728)+1 pts19% (1,108/5,746)
Social Security records in the fileEvidence in the record6% (10/181)4% (373/8,934)+1 pts12% (27/216)
Vocational expert or assessmentEvidence in the record2% (1/57)4% (382/9,058)-2 pts5% (3/64)
Medical literature or treatise citedEvidence in the record8% (34/451)4% (349/8,664)+4 pts6% (28/486)
Functional loss / DeLuca factors argued (rating cases)Theory argued14% (67/472)4% (316/8,643)+11 pts14% (83/584)
Presumptive service connection discussedTheory argued22% (52/240)4% (331/8,875)+18 pts6% (18/297)
Secondary service connection (38 CFR 3.310) in playTheory argued12% (67/568)4% (316/8,547)+8 pts16% (119/741)
Combat service / 1154(b) in playTheory argued9% (25/272)4% (358/8,843)+5 pts11% (36/336)
A medical source gave a negative nexus opinionEvidence in the record17% (52/300)4% (331/8,815)+14 pts19% (77/399)
No nexus opinion of recordEvidence in the record21% (9/43)4% (374/9,072)+17 pts9% (5/55)
VA examination or VA medical opinion obtainedEvidence in the record4% (362/8,537)4% (21/578)+1 pts17% (1,776/10,443)
Board found a VA exam or opinion inadequateHow the Board read the record5% (63/1,378)4% (320/7,737)+0 pts19% (334/1,737)
Board found the VA exam or opinion adequateHow the Board read the record2% (35/1,458)5% (348/7,657)-2 pts1% (18/1,478)
Board found the veteran's statements credibleHow the Board read the record10% (38/395)4% (345/8,720)+6 pts2% (9/412)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record25% (101/411)3% (282/8,704)+21 pts2% (9/427)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record3% (163/5,915)7% (220/3,200)-4 pts0% (3/5,958)
Duty-to-assist error foundHow the Board read the record4% (3/68)4% (380/9,047)+0 pts74% (196/266)
Board ordered a new exam or addendum opinionProcedure4% (34/970)4% (349/8,145)-1 pts60% (1,528/2,562)

"Granted" = share of issues decided on the merits (granted + denied); remands and dismissals are excluded from that fraction and shown separately. Fractions are the raw counts.

All Hearing Loss issues, every benefit type (n = 47,079)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record63% (2,704/4,321)26% (8,136/30,995)+36 pts11% (541/4,900)
Private physician opinion, letter or DBQEvidence in the record52% (2,676/5,164)27% (8,164/30,152)+25 pts9% (536/5,774)
Disability Benefits Questionnaire in the recordEvidence in the record40% (404/1,001)30% (10,436/34,315)+10 pts30% (436/1,445)
Third-party lay statements (spouse, buddy, employer)Evidence in the record36% (628/1,722)30% (10,212/33,594)+6 pts7% (141/1,889)
Service treatment records document the condition or injuryEvidence in the record37% (3,049/8,254)29% (7,791/27,062)+8 pts10% (926/9,393)
Service treatment records silent for the conditionEvidence in the record32% (2,776/8,554)30% (8,064/26,762)+2 pts6% (550/9,291)
Continuity of symptoms argued (38 CFR 3.303(b))Theory argued40% (4,543/11,489)26% (6,297/23,827)+13 pts4% (448/12,039)
Board hearing held or testimony takenProcedure33% (6,095/18,439)28% (4,745/16,877)+5 pts17% (3,971/23,263)
Social Security records in the fileEvidence in the record18% (124/677)31% (10,716/34,639)-13 pts13% (108/809)
Vocational expert or assessmentEvidence in the record18% (28/156)31% (10,812/35,160)-13 pts8% (15/179)
Medical literature or treatise citedEvidence in the record29% (956/3,305)31% (9,884/32,011)-2 pts24% (1,074/4,407)
Functional loss / DeLuca factors argued (rating cases)Theory argued25% (342/1,382)31% (10,498/33,934)-6 pts11% (184/1,628)
Presumptive service connection discussedTheory argued37% (5,432/14,772)26% (5,408/20,544)+10 pts3% (425/15,358)
Secondary service connection (38 CFR 3.310) in playTheory argued36% (1,386/3,883)30% (9,454/31,433)+6 pts18% (886/4,971)
Combat service / 1154(b) in playTheory argued44% (2,217/5,075)29% (8,623/30,241)+15 pts9% (482/5,657)
A medical source gave a negative nexus opinionEvidence in the record49% (6,441/13,177)20% (4,399/22,139)+29 pts22% (3,708/16,981)
No nexus opinion of recordEvidence in the record21% (298/1,406)31% (10,542/33,910)-10 pts3% (50/1,491)
VA examination or VA medical opinion obtainedEvidence in the record31% (9,876/32,106)30% (964/3,210)+1 pts19% (7,661/40,251)
Board found a VA exam or opinion inadequateHow the Board read the record45% (3,594/7,952)26% (7,246/27,364)+19 pts33% (3,961/12,007)
Board found the VA exam or opinion adequateHow the Board read the record8% (297/3,628)33% (10,543/31,688)-25 pts1% (44/3,685)
Board found the veteran's statements credibleHow the Board read the record67% (2,868/4,285)26% (7,972/31,031)+41 pts2% (104/4,419)
Board found the veteran's statements not credible or inconsistentHow the Board read the record10% (71/691)31% (10,769/34,625)-21 pts3% (18/712)
PTSD stressor corroborated, verified or concededHow the Board read the record38% (12/32)31% (10,828/35,284)+7 pts0% (0/32)
PTSD stressor not corroboratedHow the Board read the record9% (3/33)31% (10,837/35,283)-22 pts0% (0/35)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record86% (5,598/6,473)18% (5,242/28,843)+68 pts1% (38/6,544)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record4% (683/16,559)54% (10,157/18,757)-50 pts0% (10/16,667)
Duty-to-assist error foundHow the Board read the record32% (116/363)31% (10,724/34,953)+1 pts80% (1,503/1,884)
Board ordered a new exam or addendum opinionProcedure27% (1,066/3,935)31% (9,774/31,381)-4 pts63% (7,078/11,200)
AMA favorable finding acknowledgedProcedure63% (1,057/1,672)29% (9,783/33,644)+34 pts26% (583/2,266)

"Granted" = share of issues decided on the merits (granted + denied); remands and dismissals are excluded from that fraction and shown separately. Fractions are the raw counts.

Reading these tables honestly

Association, not cause. A positive nexus opinion appears in the records of granted appeals far more often than in denied ones. That does not mean any letter wins; it means the Board grants when the evidence supports the claim, and a nexus opinion is how that support usually reaches the file.

Appeals are not claims. Every decision here is an appealed denial. Grant rates at the Board say nothing about the share of initial claims VA grants.

Findings are outcomes in disguise. Rows under "how the Board read the record" — credibility, benefit of the doubt, an inadequate exam — describe how the judge decided, not evidence to gather. They are shown because they say which arguments the Board actually reaches for.

Detection is by text pattern. Each evidence type is found by reading the decision for finding-shaped language with negation handling; precision was read on samples before publication and is stated per feature in the method notes below. Expect a few percent of misclassified rows, not zero.

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See also: Hearing Loss decisions · all conditions · outcome rates.