Table 2. Comparison of the first antenatal care visit and intermittent preventive treatment (IPTp-SP) uptake by trimester of the pregnant women in Kwale and Siaya counties, Kenya.
| Characteristics | Overall | Kwale County | Siaya County | Measuring differences among the characteristics by the counties$ [Diff (Z-test, p-value)] |
|---|---|---|---|---|
| Trimester of 1 st ANC visit | ||||
| 1st trimester | 21 (4.3%) | 2 (1.6%) | 19 (5.3%) | Diff = -0.04 (Z = -0.23, p = 0.819) |
| 2nd trimester | 144 (29.8%) | 34 (26.6%) | 110 (30.9%) | Diff = -0.04 (Z = -0.48, p = 0.632) |
| 3rd trimester | 174 (36.0%) | 66 (51.6%) | 108 (30.3%) | Diff = 0.21 (Z = 2.80, p = 0.005*) |
| Trimester of 1 st IPTp-SP dose | ||||
| 1st trimester | 3 (0.7%) | 1 (0.8%) | 2 (0.6%) | Diff = 0.00 (Z = 0.02, p = 0.987) |
| 2nd trimester | 61 (12.6%) | 18 (14.1%) | 43 (12.1%) | Diff = 0.02 (Z = 0.21, p = 0.831) |
| 3rd trimester | 81 (16.7%) | 31 (24.2%) | 50 (14.0%) | Diff = 0.10 (Z = 1.16, p = 0.245) |
$The statistical differences among the observed characteristics (i.e. first ANC visit and IPTp-SP uptake by trimester) by county was determined using test of proportions reporting the observed difference, Z-test statistic and p-value.
*Indicated a significant difference in the proportions, i.e. p<0.05.