GI: what evidence wins at the Board

For gi 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 1,929,585 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 (1992–2025) — 971,127 decisions — so each evidence flag attaches to exactly one decided issue. A split is shown only when both sides have at least 30 decisions. Every count opens its decisions in the Board decision finder, with links to the full text on va.gov. Data build: 2026-10-15.

Service connection for GI (n = 7,558)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record63% (295/467)36% (1,234/3,460)+28 pts27% (173/643)
Private physician opinion, letter or DBQEvidence in the record51% (419/815)36% (1,110/3,112)+16 pts23% (249/1,077)
Disability Benefits Questionnaire in the recordEvidence in the record57% (106/186)38% (1,423/3,741)+19 pts45% (150/336)
Third-party lay statements (spouse, buddy, employer)Evidence in the record38% (127/333)39% (1,402/3,594)-1 pts20% (84/422)
Service treatment records document the condition or injuryEvidence in the record37% (714/1,933)41% (815/1,994)-4 pts28% (754/2,719)
Service treatment records silent for the conditionEvidence in the record24% (324/1,360)47% (1,205/2,567)-23 pts18% (299/1,693)
Continuity of symptoms argued (38 CFR 3.303(b))Theory argued31% (396/1,295)43% (1,133/2,632)-12 pts16% (243/1,549)
Board hearing held or testimony takenProcedure38% (703/1,852)40% (826/2,075)-2 pts40% (1,288/3,239)
Social Security records in the fileEvidence in the record25% (34/138)39% (1,495/3,789)-15 pts32% (67/207)
Medical literature or treatise citedEvidence in the record40% (281/709)39% (1,248/3,218)+1 pts40% (475/1,189)
Functional loss / DeLuca factors argued (rating cases)Theory argued41% (111/272)39% (1,418/3,655)+2 pts24% (88/364)
Presumptive service connection discussedTheory argued31% (570/1,862)46% (959/2,065)-16 pts18% (418/2,301)
Secondary service connection (38 CFR 3.310) in playTheory argued41% (641/1,563)38% (888/2,364)+3 pts41% (1,111/2,733)
Combat service / 1154(b) in playTheory argued41% (127/311)39% (1,402/3,616)+2 pts26% (112/436)
A medical source gave a negative nexus opinionEvidence in the record43% (753/1,756)36% (776/2,171)+7 pts41% (1,235/2,999)
No nexus opinion of recordEvidence in the record10% (28/293)41% (1,501/3,634)-32 pts14% (48/350)
VA examination or VA medical opinion obtainedEvidence in the record40% (1,274/3,180)34% (255/747)+6 pts44% (2,568/5,811)
Board found a VA exam or opinion inadequateHow the Board read the record52% (446/851)35% (1,083/3,076)+17 pts62% (1,409/2,272)
Board found the VA exam or opinion adequateHow the Board read the record22% (51/237)40% (1,478/3,690)-19 pts6% (15/252)
Board found the veteran's statements credibleHow the Board read the record76% (289/380)35% (1,240/3,547)+41 pts12% (50/430)
Board found the veteran's statements not credible or inconsistentHow the Board read the record7% (8/120)40% (1,521/3,807)-33 pts3% (4/124)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record89% (631/711)28% (898/3,216)+61 pts1% (10/723)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record3% (45/1,474)60% (1,484/2,453)-57 pts0% (3/1,480)
Duty-to-assist error foundHow the Board read the record65% (44/68)38% (1,485/3,859)+26 pts87% (509/584)
Board ordered a new exam or addendum opinionProcedure42% (240/571)38% (1,289/3,356)+4 pts81% (2,481/3,072)
AMA favorable finding acknowledgedProcedure76% (201/264)36% (1,328/3,663)+40 pts42% (190/455)

"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 GI (n = 4,502)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record24% (8/33)27% (696/2,587)-3 pts11% (4/37)
Private physician opinion, letter or DBQEvidence in the record32% (118/364)26% (586/2,256)+6 pts18% (82/448)
Disability Benefits Questionnaire in the recordEvidence in the record47% (74/158)26% (630/2,462)+21 pts39% (100/259)
Third-party lay statements (spouse, buddy, employer)Evidence in the record32% (23/72)27% (681/2,548)+5 pts19% (17/91)
Service treatment records document the condition or injuryEvidence in the record19% (78/412)28% (626/2,208)-9 pts8% (35/451)
Service treatment records silent for the conditionEvidence in the record16% (10/63)27% (694/2,557)-11 pts2% (1/66)
Board hearing held or testimony takenProcedure26% (236/907)27% (468/1,713)-1 pts39% (608/1,565)
Social Security records in the fileEvidence in the record14% (9/63)27% (695/2,557)-13 pts41% (45/110)
Medical literature or treatise citedEvidence in the record28% (28/99)27% (676/2,521)+1 pts34% (52/151)
Functional loss / DeLuca factors argued (rating cases)Theory argued26% (115/450)27% (589/2,170)-2 pts16% (88/542)
Presumptive service connection discussedTheory argued26% (9/35)27% (695/2,585)-1 pts8% (3/38)
Secondary service connection (38 CFR 3.310) in playTheory argued21% (126/592)29% (578/2,028)-7 pts21% (160/763)
Combat service / 1154(b) in playTheory argued15% (7/46)27% (697/2,574)-12 pts11% (6/57)
A medical source gave a negative nexus opinionEvidence in the record17% (24/138)27% (680/2,482)-10 pts21% (37/176)
VA examination or VA medical opinion obtainedEvidence in the record27% (641/2,413)30% (63/207)-4 pts35% (1,312/3,747)
Board found a VA exam or opinion inadequateHow the Board read the record30% (66/220)27% (638/2,400)+3 pts63% (377/599)
Board found the VA exam or opinion adequateHow the Board read the record19% (43/229)28% (661/2,391)-9 pts3% (7/236)
Board found the veteran's statements credibleHow the Board read the record55% (97/175)25% (607/2,445)+31 pts3% (5/180)
Board found the veteran's statements not credible or inconsistentHow the Board read the record12% (4/34)27% (700/2,586)-15 pts6% (2/36)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record78% (206/263)21% (498/2,357)+57 pts1% (4/268)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record8% (107/1,354)47% (597/1,266)-39 pts0% (3/1,360)
Duty-to-assist error foundHow the Board read the record41% (15/37)27% (689/2,583)+14 pts83% (185/223)
Board ordered a new exam or addendum opinionProcedure14% (30/214)28% (674/2,406)-14 pts84% (1,221/1,450)

"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 GI issues, every benefit type (n = 14,569)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record62% (330/535)37% (2,892/7,754)+24 pts25% (182/720)
Private physician opinion, letter or DBQEvidence in the record48% (692/1,429)37% (2,530/6,860)+12 pts20% (353/1,798)
Disability Benefits Questionnaire in the recordEvidence in the record58% (253/440)38% (2,969/7,849)+20 pts39% (280/721)
Third-party lay statements (spouse, buddy, employer)Evidence in the record39% (175/452)39% (3,047/7,837)-0 pts19% (107/566)
Service treatment records document the condition or injuryEvidence in the record36% (947/2,637)40% (2,275/5,652)-4 pts23% (813/3,490)
Service treatment records silent for the conditionEvidence in the record24% (359/1,474)42% (2,863/6,815)-18 pts17% (304/1,815)
Continuity of symptoms argued (38 CFR 3.303(b))Theory argued31% (413/1,334)40% (2,809/6,955)-9 pts16% (255/1,601)
Board hearing held or testimony takenProcedure38% (1,292/3,426)40% (1,930/4,863)-2 pts37% (2,142/5,738)
Social Security records in the fileEvidence in the record25% (63/250)39% (3,159/8,039)-14 pts33% (124/380)
Vocational expert or assessmentEvidence in the record42% (26/62)39% (3,196/8,227)+3 pts23% (19/83)
Medical literature or treatise citedEvidence in the record39% (347/888)39% (2,875/7,401)+0 pts38% (550/1,443)
Functional loss / DeLuca factors argued (rating cases)Theory argued39% (384/981)39% (2,838/7,308)+0 pts17% (206/1,196)
Presumptive service connection discussedTheory argued31% (609/1,948)41% (2,613/6,341)-10 pts18% (429/2,399)
Secondary service connection (38 CFR 3.310) in playTheory argued38% (950/2,517)39% (2,272/5,772)-2 pts34% (1,341/3,934)
Combat service / 1154(b) in playTheory argued38% (150/390)39% (3,072/7,899)-0 pts23% (121/530)
A medical source gave a negative nexus opinionEvidence in the record41% (824/2,005)38% (2,398/6,284)+3 pts39% (1,314/3,329)
No nexus opinion of recordEvidence in the record11% (35/326)40% (3,187/7,963)-29 pts15% (58/395)
VA examination or VA medical opinion obtainedEvidence in the record39% (2,770/7,055)37% (452/1,234)+3 pts38% (4,309/11,465)
Board found a VA exam or opinion inadequateHow the Board read the record49% (598/1,228)37% (2,624/7,061)+12 pts61% (1,917/3,161)
Board found the VA exam or opinion adequateHow the Board read the record25% (139/561)40% (3,083/7,728)-15 pts4% (25/587)
Board found the veteran's statements credibleHow the Board read the record72% (477/666)36% (2,745/7,623)+36 pts8% (57/723)
Board found the veteran's statements not credible or inconsistentHow the Board read the record10% (18/174)39% (3,204/8,115)-29 pts4% (7/181)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record87% (1,044/1,197)31% (2,178/7,092)+57 pts1% (15/1,215)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record8% (257/3,360)60% (2,965/4,929)-53 pts0% (7/3,373)
Duty-to-assist error foundHow the Board read the record55% (91/166)39% (3,131/8,123)+16 pts81% (745/925)
Board ordered a new exam or addendum opinionProcedure36% (330/917)39% (2,892/7,372)-3 pts81% (4,109/5,067)
AMA favorable finding acknowledgedProcedure75% (230/308)37% (2,992/7,981)+37 pts39% (196/505)

"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: GI decisions · all conditions · outcome rates.

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