IP-10 identifies Mtb. infection regardless of reason for admission
To reflect daily pediatric clinical practice, we performed a subgroup analysis regarding the reason for hospital admission (Figure 2). In children with clinical suspicion of TB, IP-10 concentration was significantly higher in ATB group than in non-TB group (p < 0.0001). Similarly, in contact tracing referrals, Mtb.- infected children expressed higher levels of IP-10 than TB contacts (p < 0.0001), also when ATB and LTBI groups were compared separately (p < 0.0001 for both comparisons).