Table 2.

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

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