Table 2. Age and sex specific prevalence of plasma vitamin C deficiency (<11 µmol/L) in people aged 60 years and over by location in India.

	North India		South India
	N	Prevalence	N	Prevalence
		95% CI		95% CI
Men	1283	77.7	1407	51.4
		70.9, 84.5		47.4, 55.4
Women	1385	70.9	1563	39.7
		61.9, 79.8		33.9, 45.4
Age group
60–64	985	68.7	1080	36.6
		60.1, 77.4		29.5, 43.7
65–69	658	72.2	864	39.3
		62.9, 81.6		32.2, 6.3
70–74	552	80.8	575	42.1
		73.7, 88.0		33.3, 50.9
75–79	287	79.0	275	44.6
		70.8, 87.2		34.2, 55.0
80+	186	85.0	176	50.7
		78.3, 91.7		38.2, 63.2