Table 3.

Correlation between fish, egg eating and constipation

Items	Cases	Constipation	Prevalence	χ2
Egg eater	2632	359	13.6%	0.742
Rarely eat	142	23	16.2%
Fish eater	2257	292	12.9%b	7.080
Rarely eat	517	90	17.4%b
Total	2774

^bP < 0.01.