Table 4 Geometric mean of serum folate, serum vitamin-B12, serum ferritin and blood haemoglobin levels and regression analysis adjusted for age, parity and current pregnancy and lactation status
| Â | Folate | Vitamin-B12 | Ferritin | Haemoglobin | ||||
|---|---|---|---|---|---|---|---|---|
Geometric Mean (95% C.I.) | Adjusted coefficienta (95% C.I.) | Geometric Mean (95% C.I.) | Adjusted coefficienta (95% C.I.) | Geometric Mean (95% C.I.) | Adjusted coefficienta (95% C.I.) | Arithmetic Mean (95% C.I.) | Adjusted coefficientb (95% C.I.) | |
Age group | ||||||||
 15-19 | 4.1 (3.8 - 4.3) | 0 | 214 (196 - 233) | 0 | 9.3 (8.5 - 10.1) | 0 | 12.1 (11.9-12.4) | 0 |
 20-24 | 2.4 (2.2- 2.6) | −0.74* (−0.90 - -0.58) | 241 (222 - 260) | 0.04 (−0.14 – 0.22) | 18.0 (16.4 - 19.6) | 0.44* (0.25 - 0.63) | 12.0 (11.8 – 12.3) | −0.35 (−0.89 - 0.19) |
 25-29 | 2.4 (2.1 - 2.7) | −0.63*(−0.81 - -0.44) | 247 (222 - 276) | 0.04 (−0.17 – 0.24) | 15.7 (14.0 - 17.7) | 0.38* (0.15 – 0.60) | 12.0 (11.6 – 12.4) | −0.54 (−1.17 - 0.08) |
 30-35 | 1.9 (1.7 - 2.1) | −0.73* (−0.93 - -0.53) | 234 (207 - 266) | −0.02 (−0.24 – 0.20) | 17.2 (14.8 - 20.1) | 0.53* (0.29 – 0.78) | 12.0 (11.6 – 12.4) | −0.59 (−1.27 - 0.09) |
Parity | ||||||||
 0 | 3.7 (3.4 - 3.9) | 0 | 216 (200 - 232) | 0 | 10.9 (10.1 – 11.9) | 0 | 11.9 (11.7-12.2) | 0 |
 1 | 2.7 (2.3 - 3.0) | 0.04(−0.12 – 0.20) | 248 (223 - 276) | 0.12 (−0.06 – 0.29) | 17.6 (15.8 - 19.6) | −0.01 (−0.20 – 0.18) | 11.9 (11.6-12.3) | 0.14 (−0.41 - 0.69) |
 2 or more | 1.9 (1.8 - 2.1) | −0.0(−0.24 – 0.09) | 246 (227 - 267) | 0.13 (−0.06 – 0.31) | 17.0 (15.5 - 18.7) | −0.02 (−0.17 – 0.22) | 12.3 (12.0-12.6) | 0.49 (−0.07 - 1.05) |
Current status | ||||||||
 Not pregnant/breastfeeding | 2.8 (2.6 - 3.0) | 0 | 225 (212 - 240) | 0 | 11.7 (10.9 – 12.5) | 0 | 12.1 (11.9-12.3) | 0 |
 Pregnant | 4.5 (3.9 - 5.1) | 0.81*(0.67 – 0.95) | 239 (214 - 267) | 0.01 (−.15 – 0.16) | 17.7 (15.7 – 19.9) | 0.23 (0.06 – 0.40) | 11.3 (11.0-11.6) | −0.57** (−1.05 - -0.09) |
 Breastfeeding | 1.6 (1.5 - 1.8) | −0.17**(−0.32 - -0.03) | 248 (224 - 274) | −0.01 (−0.17 – 0.15) | 20.4 (18.2 – 22.8) | 0.36* (0.18 – 0.53) | 12.8 (12.5-13.0) | 0.68** (0.19 - 1.16) |