Table 2. Changes in select disease markers observed using chest HRCT scans after azithromycin therapy.

	Number of cases		χ2	P value
	Pre-therapy	Post-therapy
Centrilobular nodules	27	5	9.537	0.008
Dilated peripheral bronchi	24	4	9.112	0.023
Bronchial wall thickening	19	6	7.684	0.012
Tree-in-bud pattern	27	3	9.772	0.024