Kidney: what evidence wins at the Board

For kidney 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 Kidney (n = 1,571)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record60% (84/140)30% (250/837)+30 pts17% (29/169)
Private physician opinion, letter or DBQEvidence in the record45% (126/279)30% (208/698)+15 pts16% (53/333)
Disability Benefits Questionnaire in the recordEvidence in the record35% (18/52)34% (316/925)+0 pts41% (36/88)
Third-party lay statements (spouse, buddy, employer)Evidence in the record27% (12/44)35% (322/933)-7 pts8% (4/48)
Service treatment records document the condition or injuryEvidence in the record28% (104/365)38% (230/612)-9 pts15% (65/434)
Service treatment records silent for the conditionEvidence in the record18% (66/374)44% (268/603)-27 pts9% (37/414)
Continuity of symptoms argued (38 CFR 3.303(b))Theory argued25% (74/300)38% (260/677)-14 pts4% (14/314)
Board hearing held or testimony takenProcedure34% (163/477)34% (171/500)-0 pts28% (191/690)
Medical literature or treatise citedEvidence in the record31% (85/275)35% (249/702)-5 pts31% (124/403)
Functional loss / DeLuca factors argued (rating cases)Theory argued33% (16/49)34% (318/928)-2 pts14% (8/57)
Presumptive service connection discussedTheory argued29% (171/590)42% (163/387)-13 pts20% (146/739)
Secondary service connection (38 CFR 3.310) in playTheory argued34% (167/494)35% (167/483)-1 pts24% (162/667)
Combat service / 1154(b) in playTheory argued26% (14/54)35% (320/923)-9 pts9% (6/65)
A medical source gave a negative nexus opinionEvidence in the record38% (187/488)30% (147/489)+8 pts31% (222/711)
No nexus opinion of recordEvidence in the record3% (2/64)36% (332/913)-33 pts9% (6/70)
VA examination or VA medical opinion obtainedEvidence in the record34% (267/791)36% (67/186)-2 pts33% (388/1,188)
Board found a VA exam or opinion inadequateHow the Board read the record40% (80/198)33% (254/779)+8 pts54% (238/439)
Board found the VA exam or opinion adequateHow the Board read the record11% (7/64)36% (327/913)-25 pts3% (2/66)
Board found the veteran's statements credibleHow the Board read the record48% (29/61)33% (305/916)+14 pts3% (2/63)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record89% (160/180)22% (174/797)+67 pts1% (2/182)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record2% (9/400)56% (325/577)-54 pts0% (0/401)
Board ordered a new exam or addendum opinionProcedure34% (45/134)34% (289/843)-1 pts74% (395/533)
AMA favorable finding acknowledgedProcedure57% (39/69)32% (295/908)+24 pts42% (50/120)

"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 Kidney (n = 269)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
Service treatment records document the condition or injuryEvidence in the record31% (10/32)17% (26/157)+15 pts3% (1/33)
Board hearing held or testimony takenProcedure18% (13/74)20% (23/115)-2 pts21% (21/100)
Secondary service connection (38 CFR 3.310) in playTheory argued14% (8/57)21% (28/132)-7 pts8% (5/64)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record6% (7/110)37% (29/79)-30 pts0% (0/111)

"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 Kidney issues, every benefit type (n = 2,275)

When the record had…Granted, with itGranted, without itDifferenceRemanded, with it
A medical source gave a positive nexus opinionEvidence in the record58% (88/152)28% (378/1,333)+30 pts17% (31/184)
Private physician opinion, letter or DBQEvidence in the record39% (135/347)29% (331/1,138)+10 pts15% (63/412)
Disability Benefits Questionnaire in the recordEvidence in the record34% (25/73)31% (441/1,412)+3 pts43% (55/128)
Third-party lay statements (spouse, buddy, employer)Evidence in the record22% (12/54)32% (454/1,431)-10 pts7% (4/58)
Service treatment records document the condition or injuryEvidence in the record28% (122/432)33% (344/1,053)-4 pts14% (69/505)
Service treatment records silent for the conditionEvidence in the record18% (68/386)36% (398/1,099)-19 pts9% (38/428)
Continuity of symptoms argued (38 CFR 3.303(b))Theory argued25% (76/308)33% (390/1,177)-8 pts4% (14/322)
Board hearing held or testimony takenProcedure31% (215/692)32% (251/793)-1 pts25% (244/969)
Social Security records in the fileEvidence in the record6% (2/36)32% (464/1,449)-26 pts20% (9/45)
Medical literature or treatise citedEvidence in the record29% (91/309)32% (375/1,176)-2 pts30% (136/450)
Functional loss / DeLuca factors argued (rating cases)Theory argued29% (19/66)32% (447/1,419)-3 pts13% (10/76)
Presumptive service connection discussedTheory argued29% (177/611)33% (289/874)-4 pts19% (146/762)
Secondary service connection (38 CFR 3.310) in playTheory argued30% (203/673)32% (263/812)-2 pts21% (179/866)
Combat service / 1154(b) in playTheory argued25% (15/61)32% (451/1,424)-7 pts8% (6/72)
A medical source gave a negative nexus opinionEvidence in the record34% (201/583)29% (265/902)+5 pts30% (250/835)
No nexus opinion of recordEvidence in the record3% (2/70)33% (464/1,415)-30 pts8% (6/76)
VA examination or VA medical opinion obtainedEvidence in the record32% (377/1,190)30% (89/295)+2 pts29% (489/1,692)
Board found a VA exam or opinion inadequateHow the Board read the record36% (92/253)30% (374/1,232)+6 pts52% (280/536)
Board found the VA exam or opinion adequateHow the Board read the record12% (12/98)33% (454/1,387)-20 pts2% (2/100)
Board found the veteran's statements credibleHow the Board read the record48% (35/73)31% (431/1,412)+17 pts4% (3/76)
Benefit of the doubt resolved in the veteran's favorHow the Board read the record86% (189/221)22% (277/1,264)+64 pts1% (2/223)
Preponderance of the evidence against / doctrine not applicableHow the Board read the record3% (22/629)52% (444/856)-48 pts0% (0/631)
Duty-to-assist error foundHow the Board read the record50% (16/32)31% (450/1,453)+19 pts81% (153/189)
Board ordered a new exam or addendum opinionProcedure31% (53/170)31% (413/1,315)-0 pts74% (489/665)
AMA favorable finding acknowledgedProcedure54% (39/72)30% (427/1,413)+24 pts41% (51/124)

"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.

Which of these is missing from your file?

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See also: all conditions · outcome rates.