Table 3B.

Differential patterns in antenatal calcium coverage across districts of northeast India by contextual factors, 2020–21.

District subgroups by contextual factors	Pregnant women who received
	full course of calcium
	supplements per 100 ANC
	registered women
	Coverage (95% CI)	Relative CD	CR
Physiographical grouping
Hilly/mountainous	36.28 (36.04–36.52)	−53.72%	0.46
Plateau	41.08 (40.81–41.34)	−47.60%	0.52
Plain	78.40 (78.30–78.49)	Reference	Reference
Special categories (under Transformation of Aspirational Districts initiative)
Aspirational districts	80.36 (80.19–80.53)	Reference	Reference
Other districts	62.67 (62.56–62.78)	−22.01%	0.78
Grouping based on proportion of mothers who had early ANC
Low (27.1 to 54.8%)	62.01 (61.83–62.19)	−13.19%	0.87
Medium (54.9 to 65.8%)	66.80 (66.65–66.96)	−6.48%	0.94
High (65.9 to 90.6%)	71.43 (71.28–71.59)	Reference	Reference

ANC, antenatal care; CI, confidence interval; CD, coverage difference; CR, coverage ratio.

While comparing the coverage across different sub-groups within a grouping, the sub-group with the highest coverage was treated as reference.