TABLE 2.

Results of Ziehl-Neelsen staining of sputum smears prepared by USP and CDC methods

Smear method and resultNo. of smearsCulture resulta (no. of samples)
PositiveNegative
USP
    3+1031003
    2+37325
    1+362214
    Scantyb15114
    Any positive19116526
    Negative1345129
    Total325170155
CDC
    3+67670
    2+37325
    1+35323
    Scanty1358
    Any positive15213616
    Negative17334139
    Total325170155
  • a Using USP, CDC, or modified Petroff method.

  • b All were negative by CDC smear microscopy.