Table 5. Comparison of characteristics of micro-aspiration in patients with different feeding patterns.

Group	Oral feeding group	Gastric tube feeding group	Post-pyloric feeding group	Test statistic	P value
Age (years)	70.19±2.95	69.93±3.67	69.96±2.80	0.108	0.898
Disordered consciousness	14 [26]	30 [43]	24 [51]	7.102	0.029
Swallowing disorder	9 [17]	26 [37]	14 [30]	6.292	0.043
History of aspiration	18 [33]	24 [34]	18 [38]	0.305	0.858
Gastric retention	9 [17]	16 [23]	10 [21]	0.744	0.689
Intra-abdominal hypertension	22 [41]	28 [40]	24 [51]	1.609	0.447
Vomiting	12 [22]	32 [46]	18 [38]	7.396	0.025
Spontaneous cough	16 [30]	32 [46]	26 [56]	7.043	0.03
Gastrointestinal tumors	21 [39]	36 [51]	21 [45]	1.955	0.376
Mechanical ventilation	20 [37]	22 [31]	26 [55]	6.946	0.031

Data are presented as mean ± SD or n [%]. SD, standard deviation.