a nonsignificant trendP = 0.060
The changes in Hb and Hct levels from baseline to months 1 and 4 were not significantly different between treatment groups, although at month 1 there was a nonsignificant trend to a greater increase in Hb in the ferrous sulfate group (IPC 1.2 ± 0.9 g/dL versus 1.8 ± 1.7 g/dL, P = 0.060).