an increasing trendp = 0.002
IRF volumes showed an increasing trend with patients’ age (2.49; p = 0.002).
IRF volumes showed an increasing trend with patients’ age (2.49; p = 0.002).
However, this trend did not reach statistical significance ( p = 0.185).
PED volumes increased in the 7th decade of life and showed a trend of decrease in patients above the age of 90 (−3.61).