Table 1.

Comparison of general data, clinical manifestations, and co-pathogen infection distribution

	MPNP group (n = 118)	Control group (n = 184)	P value
Age (months)	84.00 (61.00–96.00)	66.00 (41.25–84.00)	< 0.001
Male	65 (55.10%)	99 (53.80%)	0.827
Hospitalization days	15.50 (12.00–20.00)	10.00 (8.00–14.00)	< 0.001
Fever days	13.50 (10.00–18.00)	8.00 (6.00–12.00)	< 0.001
Cough	115 (97.50%)	176 (95.70%)	0.615
Dyspnea	26 (22.00%)	9 (4.90%)	< 0.001
Chest pain	19 (16.10%)	1 (0.50%)	< 0.001
Abdominal discomfort	17 (14.40%)	29 (15.80%)	0.749
Primary diseases	12 (10.20%)	21 (11.40%)	0.735
Complication	98 (83.10%)	125 (67.90%)	0.004
Respiratory system	90 (76.30%)	110 (59.80%)	0.003
Circulatory system	21 (17.80%)	26 (14.10%)	0.391
Digestive system	34 (28.80%)	30 (16.30%)	0.009
Blood system	29 (24.60%)	19 (10.30%)	0.001
Nervous system	3 (2.50%)	3 (1.60%)	0.895
Cutaneous mucosal system	14 (11.90%)	1 (0.50%)	< 0.001
Needing FBAL	114 (96.60%)	116 (63.00%)	< 0.001
Co-pathogen infection	44 (37.30%)	76 (41.30%)	0.486
Bacteria	19 (16.10%)	36 (19.60%)	0.447
Virus	20 (16.90%)	44 (23.90%)	0.148
Fungus	12 (10.20%)	14 (7.60%)	0.439

Bold indicates P < 0.05