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. 2017 Sep 12;318(10):962–963. doi: 10.1001/jama.2017.9236

Table. Frequency of Ruptured Distal Biceps Tendon Among Patients in the Biopsy-Proven ATTRwt vs Heart Failure (Control) Groups.

Ruptured Distal Biceps Tendon Status ATTRwt Group,
No. of Events
(n = 111)
Heart Failure Group,
No. of Events
(n = 40)
Present 37 1
Absent 74 39

Abbreviation: ATTRwt, wild-type transthyretin amyloidosis.

Fisher exact test comparing ruptured biceps tendon prevalence in ATTRwt and heart failure group, P < .001.