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Purpose <p>We examined subjective memory impairment (SMI) in a nationwide sample of pre- and postmenopausal long-term (≥ 5 years after diagnosis) breast cancer survivors (BCSs) compared to similar aged population-based controls and explored risk factors for SMI in BCSs.</p> Methods <p>We studied 1,288 BCSs and 15,461 controls aged 40–74 years who completed questionnaires including the Metamemory Questionnaire assessing SMI, divided into short-term (STM)-, and long-term (LTM) memory, and SMI total score. Menopausal status was approximated using age.</p> Results <p>Mean age of BCSs was 60 years at survey 8 years after diagnosis, and 58% were premenopausal at diagnosis. STM, LTM and SMI total mean scores were significantly worse among pre- compared to postmenopausal BCSs with Cohen’s d &lt; 0.50 Among both pre- and postmenopausal women, the means of all three SMI scores were significantly worse in BCSs compared to controls, with Cohen’s d 0.52–0.73 in premenopausal and Cohen’s d ≤ 0.20 in postmenopausal BCSs. In univariate analyses, chemo- and endocrine therapy, comorbidity, physical inactivity, BMI, neuroticism, fatigue, pain, and mental distress were statistically significantly associated with worse SMI total score in BCSs. Higher levels of fatigue and depressive symptoms remained significantly associated with SMI in multivariable analyses. </p> Conclusions <p>Long-term, premenopausal BCSs have worse SMI scores than both postmenopausal BCSs and similar aged controls. Multiple, potentially modifiable factors were significantly associated with SMI in both groups of BCSs.</p> Implications for Cancer Survivors <p>SMI appears more prominent in premenopausal long-term BCSs compared to controls. Several modifiable factors are associated with SMI in both pre- and postmenopausal BCSs.</p>

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Subjective memory impairment in long-term breast cancer survivors—associated factors and comparisons to controls from the HUNT study

  • 期刊论文

  • 发表日期：

    2025年12月26日

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  • Alv A. Dahl,
  • Solveig K. Smedsland,
  • Synne K. Bøhn,
  • Ragnhild S. Falk,
  • Julie Horn,
  • Cecilie E. Kiserud,
  • Tone Skaali,
  • Kathrine F. Vandraas,
  • Kristin V. Reinertsen

摘要

Purpose

We examined subjective memory impairment (SMI) in a nationwide sample of pre- and postmenopausal long-term (≥ 5 years after diagnosis) breast cancer survivors (BCSs) compared to similar aged population-based controls and explored risk factors for SMI in BCSs.

Methods

We studied 1,288 BCSs and 15,461 controls aged 40–74 years who completed questionnaires including the Metamemory Questionnaire assessing SMI, divided into short-term (STM)-, and long-term (LTM) memory, and SMI total score. Menopausal status was approximated using age.

Results

Mean age of BCSs was 60 years at survey 8 years after diagnosis, and 58% were premenopausal at diagnosis. STM, LTM and SMI total mean scores were significantly worse among pre- compared to postmenopausal BCSs with Cohen’s d < 0.50 Among both pre- and postmenopausal women, the means of all three SMI scores were significantly worse in BCSs compared to controls, with Cohen’s d 0.52–0.73 in premenopausal and Cohen’s d ≤ 0.20 in postmenopausal BCSs. In univariate analyses, chemo- and endocrine therapy, comorbidity, physical inactivity, BMI, neuroticism, fatigue, pain, and mental distress were statistically significantly associated with worse SMI total score in BCSs. Higher levels of fatigue and depressive symptoms remained significantly associated with SMI in multivariable analyses.

Conclusions

Long-term, premenopausal BCSs have worse SMI scores than both postmenopausal BCSs and similar aged controls. Multiple, potentially modifiable factors were significantly associated with SMI in both groups of BCSs.

Implications for Cancer Survivors

SMI appears more prominent in premenopausal long-term BCSs compared to controls. Several modifiable factors are associated with SMI in both pre- and postmenopausal BCSs.