Table 2—

Distribution of participating centres by proportion of subjects to whom purified protein derivative (PPD) screening was offered and who completed PPD screening

Characteristics of centresPPD screening offerPPD screening completion
Centres offering PPD screening n820226
Number of AIDS cases reported during the enrolment period
 ⪕1001(7.1)13(92.9)11(78.6)3 21.4
 >1007(50.0)7(50.0)0.0311(78.6)3 21.4ns
Geographical location in Italy
  • Data are presented as n (%) unless ofherwise stated

  • AIDS: acquired immune deficiency syndrome

  • ns: nonsignificart