Table 2.

Unadjusted outcomes in patients who did and did not receive plasma exchange.

Outcome	Received plasma exchange	Did not receive plasma exchange
In-hospital mortality (%)	18.42	11.30
30-day mortality (%)	13.16	6.50
50-day mortality (%)	15.79	10.57
Length of hospital stay (days) [IQR]	37 [21.0–59.5]	28 [17.5–52.5]

IQR interquartile range.