Investigation of INDEL variants in apoptosis: the relevance to gastric cancer

BMC Medical Genetics

Table 2 Demographic data for case (gastric cancer patients) and control groups

Variable	Case	Control	P-value
N	91	95
Age, years^a	42.15 ± 1.66	32.18 ± 1.17	< 0.001
Sex, % of male/female^b	48.9/51.1	50.0/50.0	1.000
European ancestry^c	0.541 ± 0.028	0.587 ± 0.021	0.251
African ancestry^c	0.152 ± 0.018	0.124 ± 0.013	0.966
Native American ancestry^c	0.307 ± 0.022	0.289 ± 0.019	0.649
Stage I, %	3.3	NA	0.241
Stage II, %	20.7	NA
Stage III, %	26.0	NA
Stage IV, %	50.0	NA

^aValues are expressed as mean ± SE (Standard Error of Mean), Student’s t-test; b ^cValues are expressed as distribution percentages, chi-squared test; ^cValues are expressed as mean ± SE, Mann-Whitney test. NA Not Applicable

ISSN: 1471-2350