Look at Table 1 in the article. What happens to the average PaO₂ level in the open ES group over time?

Let’s look at the use of ANOVA in the following nursing research article:
Özden, D., & Görgülü, R. S. (2015). Effects of open and closed suction systems on the haemodynamic parameters in cardiac surgery patients. Nursing in Critical Care, 20(3), 118–125. doi:10.1111icc.12094

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TABLE 10-1 SBP for Caucasian, African American, and Latino Men Caucasian African American Latino 134 112 108 196 178 110 143 178 156 123 165 110 145 164 127 139 123 120 118 146 124 114 118 123 126 118 119 128 132 142 123 156 150 142 116 154 122 116 140 119 130 121