Association between wrist ratio and carpal tunnel syndrome: Effect modification by body mass index.

Abstract:

INTRODUCTION:Previous studies have reported higher wrist ratios (WR) related to carpal tunnel syndrome (CTS) but have not assessed effect modification by obesity and may have inadequately controlled for confounders. METHODS:Baseline data of a multicenter prospective cohort study were analyzed. CTS was defined by nerve conduction study (NCS) criteria and symptoms. RESULTS:Among the 1,206 participants, a square-shaped wrist was associated with CTS after controlling for confounders (prevalence ratio = 2.27; 95% confidence interval [95% CI], 1.33-3.86). Body mass index (BMI) was a strong effect modifier on the relationship between WR and both CTS and abnormal NCS results, with normal weight strata of rectangular versus square wrists = 8.18 (95% CI, 1.63-49.96) and 7.12 (95% CI, 2.19-23.16), respectively. DISCUSSION:A square wrist is significantly associated with CTS after controlling for confounders. Effect modification by high BMI masked the eightfold magnitude adjusted relationship seen between WR and CTS among normal weight participants. Muscle Nerve 56: 1047-1053, 2017.

journal_name

Muscle Nerve

journal_title

Muscle & nerve

authors

Thiese MS,Merryweather A,Koric A,Ott U,Wood EM,Kapellusch J,Foster J,Garg A,Deckow-Schaefer G,Tomich S,Kendall R,Drury DL,Wertsch J,Hegmann KT,Wistah Study Team.

doi

10.1002/mus.25692

subject

Has Abstract

pub_date

2017-12-01 00:00:00

pages

1047-1053

issue

6

eissn

0148-639X

issn

1097-4598

journal_volume

56

pub_type

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