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. 2005 Jun;43(6):2703–2708. doi: 10.1128/JCM.43.6.2703-2708.2005

TABLE 2.

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

Smear method and result No. of smears Culture resulta (no. of samples)
Positive Negative
USP
    3+ 103 100 3
    2+ 37 32 5
    1+ 36 22 14
    Scantyb 15 11 4
    Any positive 191 165 26
    Negative 134 5 129
    Total 325 170 155
CDC
    3+ 67 67 0
    2+ 37 32 5
    1+ 35 32 3
    Scanty 13 5 8
    Any positive 152 136 16
    Negative 173 34 139
    Total 325 170 155
a

Using USP, CDC, or modified Petroff method.

b

All were negative by CDC smear microscopy.