Table 1. Comparison of the general information of participants in different groups.

Item		n	Non anemia (n = 52)	Microcytic anemia (n = 14)	Normocytic anemia (n = 29)	t/ χ2	P
Age (yr, Mean ± SD)			56.42 ± 6.05	59.70 ± 6.33	59.86 ± 6.70	0.960	0.075
Gender						6.874	0.021*
	Male	54	37	4	13
	Female	41	15	10	16
Age(years)						2.125	0.212
	<65	34	20	6	8
	≥65	61	32	8	21
Weight loss(kg)						7.962	0.014*
	≤5	55	37	7	11
	>5	40	15	7	18
BMI (kg/m2 , Mean ± SD)			29.02 ± 3.21	27.45 ± 2.66	27.57 ± 2.80	1.204	0.003*
Smoking		19	4	7	8	1.336	0.068
Drinking		28	7	10	13	0.903	0.870

Notes.

BMI

Body mass index

P-values were obtained using χ2 tests for categorical variables. Wilcoxon test was used for continuous variables.

The asterisk implies statistical significance.