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Table 2 Results of linear combinations estimation from the logistic model of two vs. one SP doses.

From: Implementation of intermittent preventive treatment in pregnancy with sulphadoxine/pyrimethamine (IPTp-SP) at a district health centre in rural Senegal

Contrast

Odds Ratio

95%CI

Pr > ChiSq

1 visit increase in the number of antenatal visits

51.72

8.21

325.80

< .0001

1 week increase in the week of first visit

2.25

1.50

3.38

< .0001

1 week increase in the week of first SP dose

0.96

0.73

1.25

0.7443

5 week decrease for the first antenatal visit in women who had 3 to 5 visits

31.92

5.15

197.80

0.0002

5 week decrease for the first antenatal visit in women who had 0 to 2 visits

57.83

7.61

439.50

< .0001

5 week increase for the first SP dose in women who had a first antenatal visit at week 30

10.79

4.74

24.56

< .0001

5 week increase for the first SP dose in women who had a first antenatal visit at week 10

2.57

1.10

6.02

0.0300