Epidemiology and clinical severity of the serotypes of human parainfluenza virus in children with acute respiratory infection

Table 4 Diagnosis of PIV positive children

	Total	PIV1	PIV2	PIV3	p value
	n = 78	n = 32	n = 5	n = 41	p value
Severe pneumonia	4 (5.1%)	2 (6.2%)	0	2 (4.9%)	0.737
Non-severe pneumonia	74 (94.9%)	30 (93.8%)	5 (100%)	39 (95.1%)	0.737
Lower respiratory tract infection	70 (89.7%)	27 (84.4%) ^a,b	3 (60.0%) ^b	40 (97.6%) ^a	0.021^*
Upper respiratory tract infection	8 (10.2%)	5 (15.6%) ^a,b	2 (40.0%) ^b	1 (2.4%) ^a	0.021^*

^a,b Number with the same superscript letters indicate that there is no significant difference from each other at the 0.05 level
^*Multiplex comparison by Bonferroni showed the adjusted p < .05 between the two groups of PIV2 and PIV3.

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