What variables that affect blood pressure

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What variables that affect blood pressure might confuse the comparison of average blood pressures for users and nonusers? That is, what factors affecting blood pressure might differ for users and nonusers. Explain. can someone help me with this problem?

Reference no: EM13134201

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What variables that affect blood pressure : What variables that affect blood pressure might confuse the comparison of average blood pressures for users and nonusers?
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