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Menopausal hormone therapy and the incidence of carpal tunnel syndrome in postmenopausal women: Findings from the Women's Health Initiative
Journal article   Open access   Peer reviewed

Menopausal hormone therapy and the incidence of carpal tunnel syndrome in postmenopausal women: Findings from the Women's Health Initiative

Tala Al-Rousan, Jeffrey A Sparks, Mary Pettinger, Rowan Chlebowski, JoAnn E Manson, Andrew M Kauntiz and Robert Wallace
PloS one, Vol.13(12), pp.e0207509-e0207509
2018
DOI: 10.1371/journal.pone.0207509
PMCID: PMC6279038
PMID: 30513095
url
https://doi.org/10.1371/journal.pone.0207509View
Published (Version of record) Open Access

Abstract

Carpal tunnel syndrome (CTS) is a common and debilitating condition that commonly affects postmenopausal women. To determine the effect of menopausal hormone therapy (HT) in healthy postmenopausal women on CTS risk. We conducted a secondary analysis of the Women's Health Initiative's (WHI) HT trials linked to Medicare claims data. Separate intention-to-treat analyses were performed for the two trials; the conjugated equine estrogens alone (CEE alone) and the trial of CEE plus medroxyprogesterone acetate (MPA) trial. (ClinicalTrials.gov, NCT number): NCT00000611. Two randomized, double-blind, placebo-controlled trials conducted at 40 US clinical centers. The sample size included in the analysis was 16,053 community-dwelling women aged ≥65 years at study entry or those who later aged into Medicare eligibility, and who were enrolled in Medicare (including Part A and/or Part B coverage). Women with hysterectomy were randomized to 0.625 mg/d of conjugated equine estrogens (CEE) or placebo (n = 8376). Women without hysterectomy were randomized to estrogen plus progestin (E+P), given as CEE plus 2.5 mg/d of medroxyprogesterone acetate (n = 14203). The primary outcome was incident CTS and the secondary outcome was therapeutic CTS procedure occurring during the intervention phases of the trials. A total of 16,053 women were randomized in both trials. During mean follow up of 4.5 ± 2.8 years in the CEE trial (n = 6,833), there were 203 incident CTS cases in the intervention and 262 incident CTS cases in the placebo group (HR, 0.78; 95% CI, 0.65-0.94; P = 0.009). The CEE+MPA trial (n = 9,220) followed participants for a mean of 3.7 ± 2.3 years. There were 173 incident CTS cases in the intervention compared to 203 cases in the placebo group (HR, 0.80, 95% CI, 0.65-0.97; P = 0.027). These findings suggest a protective effect of menopausal HT on the incidence of CTS among postmenopausal women. A potential therapeutic role for other forms of estrogen therapy in the management of CTS warrants future research.
Aged Aged, 80 and over Carpal Tunnel Syndrome - epidemiology Carpal Tunnel Syndrome - therapy Double-Blind Method Female Hormone Replacement Therapy - statistics & numerical data Humans Incidence Middle Aged Postmenopause - drug effects

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