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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Pediatr Cardiol. 2012 Jul 15;34(2):256–261. doi: 10.1007/s00246-012-0430-5

Table 1.

Questions asked of survey recipients (yes or no)

The patient regularly produces and coughs up mucus or fibrous plugs (casts)
The patient has never produced or coughed up mucus or fibrous plugs (casts)
The patient has produced mucus or fibrous plugs (casts) in the past but presently is not producing them
The patient has been diagnosed with PB (now or anytime in the past)

Patients who answered “yes” to question no. 1 were categorized as PB now (PB now); patients who answered “yes” to questions nos. 3 or 4 were categorized as PB ever (PB ever)