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. Author manuscript; available in PMC: 2025 Oct 25.
Published in final edited form as: Lancet Healthy Longev. 2025 Sep 30;6(9):100764. doi: 10.1016/j.lanhl.2025.100764

Table 3.

Overall long-term rates of endpoint events and hazard ratios comparing randomized aspirin and placebo groups.

Endpoint Aspirin (N = 9,525) Placebo (N = 9,589) HR (95% CI) P value
No. (%) of pts with event Rate per 1000 py No. (%) of pts with event Rate per 1000 py

Primary endpoint * 2110 (22ˑ2) 28ˑ20 2107 (22ˑ0) 27ˑ89 1ˑ01 (0ˑ95, 1ˑ08) 0ˑ65
Death 1011 (10ˑ6) 14ˑ73 975 (10ˑ2) 14ˑ07 -- --
Dementia 569 (6ˑ0) 8ˑ72 571 (6ˑ0) 8ˑ63 -- --
Disability 530 (5ˑ6) 8ˑ11 561 (5ˑ9) 8ˑ46 -- --

Secondary endpoints
Death 1547 (16ˑ2) 19ˑ31 1481 (15ˑ4) 18ˑ25 1ˑ06 (0ˑ99, 1ˑ14) 0ˑ10
Dementia 601 (6ˑ3) 8ˑ06 616 (6ˑ4) 8ˑ16 0ˑ99 (0ˑ89, 1ˑ11) 0ˑ87
Disability 622 (6ˑ5) 8ˑ53 657 (ˑ9) 8ˑ92 0ˑ96 (0ˑ86, 1ˑ07) 0ˑ45

Note: Overall long-term represents the entire period from randomization in ASPREE until Year 4 follow-up in ASPREE-XT (median of 88 years including a median of 47 years in the randomized treatment phase)

*

The first occurrence of any of the three components (death from any cause, dementia, or persistent physical disability) during the treatment phase and legacy follow-up.

For the secondary endpoints, all the participants who had an event at any time during the trial and legacy followup period are counted.