Bush did not attend Obama's second inauguration on Monday, with his aides citing his ill health.
About a week earlier the former president was discharged from Methodist Hospital in Houston where he had been receiving treatment for a persistent cough and bacterial infection. Bush had been in and out of the hospital since Thanksgiving.
According to an aide, Bush spent Monday at his home in Houston.
His son, former President George W. Bush also did not attend Monday's inauguration festivities, reportedly to spend time with his father.