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. 2019 Aug 5;40(7):1492–1500. doi: 10.1177/0271678X19867154

Table 3.

Stepwise linear regression using OEF (%) as the dependent variable in cognitively normal elderly subjects.

Variables β ± SE P ΔModel R2
Age 0.40 ± 0.12 0.002 0.13
EtCO2 −1.19 ± 0.18 2 × 10−6 0.49
SBP 0.12 ± 0.04 0.01 0.11

β: standardized beta coefficient; SE: standardized error; EtCO2: end-tidal carbon dioxide.