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. Author manuscript; available in PMC: 2024 Sep 4.
Published in final edited form as: Birth Defects Res. 2024 Aug;116(8):e2390. doi: 10.1002/bdr2.2390

TABLE 5 |.

Prevalence and unadjusted and adjusted prevalence ratios of vitamin B12 deficiency and marginal deficiency among non-pregnant and non-lactating women of reproductive age, 18–49 years, Ambala District, Haryana, India.

Serum vitamin B12 deficiency (<200 pg/mL)
Serum vitamin B12 marginal deficiency (≥200–<300 pg/mL)
Characteristic n (unweighted) Prevalence (95% CI) Unadjusted prevalence ratio (95% CI) Adjusted prevalence ratio (95% CI)a Prevalence (95% CI) Unadjusted prevalence ratio (95% CI) Adjusted prevalence ratio (95% CI)b
Total 755 57.7 (53.9, 61.4) 23.5 (20.4, 26.9)
Age (years)
  18–29 249 69.3 (62.8, 75.1) Referent Referent 18.8 (14.2, 24.4) Referent Referent
  30–39 307 55.1 (49.1, 60.9) 0.79 (0.69, 0.91) 0.86 (0.71, 1.05) 26.6 (21.5, 32.3) 1.42 (1.01, 1.99) 1.05 (0.68, 1.63)
  40–49 219 48.8 (41.5, 56.1) 0.70 (0.59, 0.84) 0.80 (0.64, 0.99) 24.5 (18.8, 31.4) 1.31 (0.90, 1.90) 0.96 (0.60, 1.54)
Religion
  Hinduism 693 60.2 (56.2, 64.0) Referent Referent 21.8 (18.6, 25.4) Referent Referent
  Islam 22 36.9 (19.5, 58.6) 0.61 (0.35, 1.07) 0.55 (0.30, 1.00 c ) 37.8 (19.5, 60.4) 1.73 (0.96, 3.13) 1.64 (0.86, 3.13)
  Sikhism 60 38.4 (26.7, 51.6) 0.64 (0.45, 0.89) 0.67 (0.49, 0.90) 36.9 (24.4, 51.5) 1.69 (1.13, 2.54) 1.57 (1.04, 2.37)
Caste
  General 229 54.1 (47.1, 60.9) Referent 28.6 (22.6, 35.4) Referent
  Scheduled (caste, tribe) 279 57.3 (51.0, 63.4) 1.06 (0.90, 1.26) 21.7 (16.8, 27.4) 0.76 (0.54, 1.05)
  Other backward classes 267 60.8 (54.2, 67.0) 1.12 (0.95, 1.33) 21.3 (16.3, 27.3) 0.74 (0.53, 1.05)
Education
  None 160 52.6 (44.3, 60.8) Referent 32.5 (25.0, 41.1) Referent Referent
  Primary 155 61.7 (53.2, 69.6) 1.17 (0.95, 1.44) 19.5 (13.5, 27.2) 0.60 (0.39, 0.92) 0.60 (0.39, 0.92)
  Secondary 291 57.4 (51.1, 63.4) 1.09 (0.90, 1.32) 21.3 (16.8, 26.8) 0.66 (0.47, 0.92) 0.66 (0.47, 0.93)
  Higher secondary and above 137 59.8 (50.9, 68.2) 1.14 (0.92, 1.41) 22.0 (15.5, 30.1) 0.68 (0.44, 1.03) 0.69 (0.45, 1.04)
Occupation
  Earning 248 54.9 (48.1, 61.5) Referent 25.8 (20.2, 32.2) Referent
  Non-earning 513 58.9 (54.2, 63.4) 1.07 (0.93, 1.24) 22.7 (19.0, 27.0) 0.88 (0.66, 1.19)
Marital status
  Never married 109 78.7 (68.7, 86.1) Referent 12.5 (7.2, 20.8) Referent
  Married 620 54.0 (49.7, 58.2) 0.69 (0.60, 0.79) 25.7 (22.1, 29.7) 2.06 (1.19, 3.57)
  Divorced/widowed/separated 46 59.5 (44.0, 73.4) 0.76 (0.57, 1.00c) 20.2 (10.8, 34.7) 1.62 (0.74, 3.56)
Parity
  Nulliparous 145 75.6 (67.0, 82.6) Referent Referent 14.7 (9.3, 22.5) Referent Referent
  Primiparous 79 58.4 (46.1, 69.7) 0.77 (0.61, 0.97) 0.81 (0.63, 1.04) 22.9 (14.5, 34.2) 1.55 (0.84, 2.88) 1.47 (0.79, 2.73)
  Multiparous 551 53.1 (48.6, 57.6) 0.70 (0.61, 0.80) 0.81 (0.65, 0.99) 25.8 (22.0, 30.1) 1.75 (1.10, 2.80) 1.70 (1.08, 2.68)
Diet
  Vegetarian 670 58.8 (54.8, 62.8) Referent 23.1 (19.7, 26.7) Referent
  Eggetarian 36 51.8 (34.6, 68.7) 0.88 (0.62, 1.25) 37.3 (21.8, 55.9) 1.62 (0.98, 2.66)
  Non-vegetarian 69 50.8 (38.0, 63.5) 0.86 (0.66, 1.13) 21.1 (12.4, 33.5) 0.91 (0.54, 1.55)
Having a ration card
  Yes 755 58.0 (54.2, 61.7) 1.20 (0.73, 1.96) 23.2 (20.0, 26.6) 0.64 (0.33, 1.27)
  No 20 48.5 (26.7, 70.9) Referent 36.0 (16.6, 61.4) Referent
Ration card category
  Below poverty line 277 58.2 (51.8, 64.3) Referent 24.3 (19.2, 30.2) Referent
  Above poverty line 477 57.8 (52.9, 62.5) 0.99 (0.87, 1.14) 22.5 (18.7, 26.9) 0.93 (0.69, 1.24)
  No ration card 20 48.5 (26.7, 70.9) 0.83 (0.50, 1.38) 36.0 (16.6, 61.4) 1.48 (0.73, 3.00)
PDS wheat purchase
  Yes 497 59.4 (54.7, 63.9) 1.22 (0.75, 2.01) 23.0 (19.2, 27.3) 0.64 (0.32, 1.27)
  No 255 55.4 (48.5, 62.0) 1.14 (0.69, 1.89) 23.0 (17.8, 29.2) 0.64 (0.32, 1.29)
  No ration card 20 48.5 (26.7, 70.9) Referent 36.0 (16.6, 61.4) Referent
Folic acid supplement use
  Yes 23 33.8 (17.5, 55.3) 0.58 (0.32, 1.04) 14.7 (4.5, 38.6) 0.62 (0.20, 1.87)
  No 752 58.6 (54.7, 62.3) Referent 23.8 (20.7, 27.3) Referent
Vitamin B12 supplement use
  Yes 20 16.8 (6.5, 37.0) 0.29 (0.12, 0.70) 0.29 (0.12, 0.70) 15.6 (5.6, 36.5) 0.66 (0.25, 1.72)
  No 755 58.8 (55.0, 62.5) Referent Referent 23.7 (20.6, 27.2) Referent

Note: Statistically significant results are bolded.

Abbreviations: 95% CI, 95% confidence interval; PDS, public distribution system.

a

Adjusted for age, religion, parity, and vitamin B12 use.

b

Adjusted for religion, education, and parity.

c

Value >1.