Tian-Shin Yeh1, Yu-Chun Ho2, Cherng-Lan Hsu3, Shin-Liang Pan4,5. 1. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan. 2. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan. 3. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan. 4. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan. panslcb@gmail.com. 5. Department of Physical Medicine and Rehabilitation, National Taiwan University College of Medicine, Taipei, Taiwan. panslcb@gmail.com.
Abstract
STUDY DESIGN: Propensity score-matched, retrospective cohort study. OBJECTIVES: To determine the risk of developing Alzheimer's disease (AD) in patients with spinal cord injury (SCI). SETTING: The present study used Taiwan's National Health Insurance Research Database. METHODS: A total of 9257 patients who had ⩾2 ambulatory visits with a diagnosis of SCI in 2001 were included in the SCI group. The non-SCI group consisted of 37,028 propensity score-matched patients without a diagnosis of SCI. The cumulative incidence of AD was estimated for each of the two patient groups using the Kaplan-Meier method. Stratified Cox proportional hazard regression was then employed to assess the influence of SCI on the risk of AD. RESULTS: During the follow-up period, 25 subjects in the SCI group and 57 in the non-SCI group developed AD. The cumulative incidence of AD in the SCI group was higher than in the non-SCI group (P = 0.0168); and the hazard ratio of AD for the SCI group, as compared to the non-SCI group, was 1.71 (95% CI 1.06-2.76, P = 0.0273). CONCLUSIONS: This study suggests that patients with SCI have an increased risk of developing AD.
STUDY DESIGN: Propensity score-matched, retrospective cohort study. OBJECTIVES: To determine the risk of developing Alzheimer's disease (AD) in patients with spinal cord injury (SCI). SETTING: The present study used Taiwan's National Health Insurance Research Database. METHODS: A total of 9257 patients who had ⩾2 ambulatory visits with a diagnosis of SCI in 2001 were included in the SCI group. The non-SCI group consisted of 37,028 propensity score-matched patients without a diagnosis of SCI. The cumulative incidence of AD was estimated for each of the two patient groups using the Kaplan-Meier method. Stratified Cox proportional hazard regression was then employed to assess the influence of SCI on the risk of AD. RESULTS: During the follow-up period, 25 subjects in the SCI group and 57 in the non-SCI group developed AD. The cumulative incidence of AD in the SCI group was higher than in the non-SCI group (P = 0.0168); and the hazard ratio of AD for the SCI group, as compared to the non-SCI group, was 1.71 (95% CI 1.06-2.76, P = 0.0273). CONCLUSIONS: This study suggests that patients with SCI have an increased risk of developing AD.
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