Cellularity of bone marrow--a comparison of trephine biopsies and aspirate smears

The estimation of cellularity of bone marrow was done on 212 trephine biopsies and their corresponding aspirate smears by a single observer using the visual scanning method. On applying the statistical test of agreement, it was found that the trephine biopsies and the aspirate smears were equally reliable in assessing marrow cellularity.