Question: For Table 9.11, fit a model in which death rate depends only on age. Interpret the age effect. Table 9.11: Data on Heart Valve Replacement

For Table 9.11, fit a model in which death rate depends only on age. Interpret the age effect.

Table 9.11:

Data on Heart Valve Replacement Operations Type of Heart Valve Aortic 4 1259 Mitral Age Deaths Time at risk Death rate D

Data on Heart Valve Replacement Operations Type of Heart Valve Aortic 4 1259 Mitral Age Deaths Time at risk Death rate Deaths Time at risk Death rate < 55 2082 0.0032 0.0005 55 + 1417 1647 0.0055 0.0049

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