Table 1 List of key parameters extracted from international tuberculosis contact-tracing notifications received by RKI, 2010–2018

CT notification

• Notifying country

• Month of notification

• Year of notification

Index case

General characteristics:

• Age

• Sex

• Nationality

Clinical characteristics:

• TB diagnosis (type of TB, site of disease)

• Smear microscopy (positive, negative)

• Culture (positive, negative, pending)

• PCR (positive, negative, pending)

• Chest X-ray (positive, negative, cavitary lesions)

• Presence of drug susceptibility testing result (yes/no)

• Drug resistance profile (H^a-resistant), (R^a-resistant), (S^a-resistant), MDR-TB^b, XDR-TB^c

• Infectiousness during contact (yes/no)

• Information on symptoms during contact (yes/no)

• Information on transmission to close contacts (yes/no)

Exposure

• Responsible local health authority in Germany

• Federal state of responsible local health authority

• Type of contact (flight contact, private contact, work contact, school/education-related contact, ship contact)

• Time between exposure and diagnosis (< 3 months, > 3 months)

• Duration of contact (< 8 h, > 8 h, < 40 h, > 40 h)

• Departure city^d

• Departure country^d

• Arrival city^d

• Arrival country^d

• Contact person seated within two rows of index case (yes/no)^d

Contact person(s)

• Information on name (yes/no)

• Information on passport number (yes/no)

• Information on address (yes/no)

• Information on telephone number (yes/no)

• Information on email address (yes/no)

• Child (yes/no)