Table 2 Associations between intervention arms and pregnancy outcomes among pregnant women in south Gondar zone, northwest Ethiopia

Mean birth weight in grams, SD

3065 ± 453

2995 ± 541

69 [ -31, 170 ]

0.175

55 [-43, 153 ]

0.274

 range

1700–4200

1315–4162

 missing

13

17

Gestational age at birth, weeks

38.0 ± 8.2

36.5 ± 9.6

0.93 [ 0.48 ,1.39 ]

p < 0.001

0.91 [ 0.52, 1.30 ]

p < 0.001

 range

34–42

32–42

 missed

9

13

Low birth weight, n(%)

.

 < 2500 g

16/198 [8.1]

20/194 [10.3]

0.988 [0.959, 1.018]

0.445

0.985[0.956, 1.016]

0.346

 > 2500 g

182/198 [91.9]

174/194 [89.7]

 missed

13

17

Preterm birth, n(%)

 < 37 weeks

5/189 [2.6]

21/186 [11.3]

0.956 [0.931, 0.982]

0.001

0.947 [0.922, 0.974]

p < 0.001

 ≥ 37 weeks

184/189 [97.4]

165/186 [88.7]

.

 missing

22

25

Miscarriage, n (%)

 yes

3/202[1.4]

5/204[2.4]

1.650[0.400, 6.814]

0.489

1.534[0.381, 6.177]

0.548

 no

199/204[94.3

199/204[94.3

 missed

9

7

Still birth, n(%)

 yes

3/196 [1.5]

6/192 [3.1]

0.992 [0.977, 1.007]

0.299

0.988 [0.970, 1.005]

0.165

 no

193/196 [98.4]

186/192 [96.8]

 missed

15

19

Maternal complications, n(%)

 yes

31/182 [17.0]

26/194[13.4]

1.020[0.980, 1.061]

0.328

1.015[0.976, 1.056]

0.458

 no

151/182 [83.0]

168/194[86.6]

 missed

29

17