Look at Table 1 in the article. Which group had a higher PaO₂ level before any intervention at all? Was this a significant difference?

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 134 112 108 110 178 156 123 165 110 139 118 146 124 114 196 178 143 123 145 164 127 120 123 126 142 123 156 122 116 118 119 128 132 118 150 142 116 154 140 119 130 121