Table V.

Hand-washing changes and occupation

Hand-washing activity	Occupation (%)
	Clerk	Transport worker	Worker	Service worker	Student	Farmer	Retired	Total
Before meal
increase	40.3	42.7	44.0	52.9	54.9	53.4	46.7	50.1
same	57.3	54.2	52.6	40.8	41.9	44.7	51.1	46.4
decrease	2.4	3.1	3.4	6.4	3.2	1.9	2.2	3.5
χ2 = 36.870; d.f. = 12; P < 0.001
When back home
increase	41.7	43.6	46.6	56.4	63.2	49.0	44.4	53.3
same	56.8	54.2	50.9	38.7	34.4	49.0	54.4	44.0
decrease	1.5	2.2	2.6	4.9	2.4	1.9	1.1	2.7
χ2 = 66.136; d.f. = 12; P < 0.0001
After contact with public materials
increase	49.1	41.9	47.4	56.9	62.2	54.8	47.8	54.6
same	48.5	57.3	50.9	37.6	34.3	43.8	51.1	42.9
decrease	2.4	0.9	1.7	5.5	1.9	1.4	1.1	2.4
χ2 = 59.526; d.f. = 12, P < 0.0001
N	206	227	116	346	614	208	90	1807