Betel quid chewing as a source of manganese exposure: total daily intake of manganese in a Bangladeshi population

BMC Public Health

Table 1 Concentration of Mn (mg kg^-1) in betel quid chewing components^a

Component	n	Mean	SD^b	10%	25%	50% (Median)	75%	90%
Ordinary Betel quid	26	41	27	12.5	19.8	30	64.3	105.8
Sweetened Betel quid	12	19	10	10.5	13.9	16	19.5	38.7
Piper betel leaves	30	136	106	36.4	46.2	145	156	311.4
Areca nut	7	12	5	8.6	8.7	13	14.8	-
Lime (Chuna)	6	40	8	30.5	31.3	42	48.2	-
Tobacco	2	367	140	-	-	367	-	-
Zarda (flavoared tobacco)	13	102	61	19.3	46.1	97	143.5	197.8

ISSN: 1471-2458