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Arch Dis Child 76:452-453 doi:10.1136/adc.76.5.452
  • Original article

Predictive value of a 24 hour tuberculin skin test evaluation

Table 1

Relationship of 24 hour readings to results at 72 hours

Induration at 24 hours (mm) No of subjects ⩾10 mm at 72 hours No of subjects <10 mm at 72 hours
0 21 545
1–4 27 137
5–9 101 46
10–14 112 1
15–19 53 1
20–24 16 0
⩾25 2 0

This Article

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