Table 6.
Estimates of prevalence (P), intracluster correlation coefficients (ICC), their respective 95% CI, design effect (Deff), and mean cluster size (n a ) for categorical variables of process during labor
| Variable | P(%) | ICC | 95% CI for ICC | Deff | n a |
|---|---|---|---|---|---|
| Mode of onset of labor (spontaneous) |
55.3 |
0.018 |
0.004-0.032 |
6.5 |
265 |
| Intrapartum antibiotic (ATB) |
51.8 |
0.194 |
0.084-0.304 |
71.8 |
260 |
| ● ATB for fever |
0.5 |
0.003 |
<0.001-0.008 |
1.8 |
252 |
| ● ATB for GBS colonization |
1.9 |
0.019 |
0.004-0.034 |
5.6 |
252 |
| ● ATB for risk factor to GBS |
20.0 |
0.148 |
0.058-0.238 |
48.2 |
252 |
| ● ATB for other reasons |
29.1 |
0.384 |
0.217-0.550 |
148.0 |
252 |
| Analgesics during labor: |
|
|
|
|
|
| ● Epidural |
4.2 |
0.200 |
0.087-0.313 |
43.3 |
259 |
| ● Epidural plus spinal anesthesia |
3.7 |
0.201 |
0.088-0.314 |
74.3 |
259 |
| ● Spinal anesthesia |
20.1 |
0.338 |
0.181-0.495 |
112.8 |
259 |
| ● Meperidine |
0.8 |
0.018 |
0.004-0.033 |
6.6 |
259 |
| ● Tramadol |
0.2 |
0.002 |
<0.001-0.006 |
1.4 |
259 |
| ● Benzodiazepines |
0.1 |
0.008 |
<0.001-0.017 |
3.6 |
259 |
| ● Antispasmodics |
2.2 |
0.071 |
0.023-0.119 |
21.2 |
259 |
| ● Oral analgesics |
2.0 |
0.091 |
0.031-0.150 |
23.0 |
259 |
| ● Other analgesics |
2.4 |
0.102 |
0.036-0.168 |
46.6 |
259 |
| Mode of delivery (vaginal) |
48.8 |
0.024 |
0.006-0.043 |
7.7 |
265 |
| Episiotomy |
38.7 |
0.176 |
0.068-0.283 |
31.5 |
126 |
| Forceps |
3.9 |
0.056 |
0.014-0.099 |
12.9 |
116 |
| Cesarean indication: |
|
|
|
|
|
| ● Fetal distress |
25.7 |
0.016 |
0.001-0.031 |
3.8 |
133 |
| ● Cephalic-pelvic disproportion |
2.8 |
0.016 |
0.001-0.032 |
3.2 |
133 |
| ● Two or more cesarean scars |
9.8 |
0.006 |
<0.001-0.014 |
2.0 |
133 |
| ● Pelvic or other abnormal fetal presentation |
15.6 |
0.012 |
<0.001-0.025 |
2.9 |
133 |
| ● Functional dystocia |
2.2 |
0.022 |
0.003-0.041 |
3.8 |
133 |
| ● Diabetes |
1.8 |
0.013 |
<0.001-0.027 |
3.3 |
133 |
| ● Arterial hypertension |
22.7 |
0.043 |
0.011-0.075 |
7.4 |
133 |
| ● Cardiac disease |
0.6 |
0.009 |
<0.001-0.020 |
1.6 |
133 |
| ● HIV |
1.6 |
0.005 |
<0.001-0.012 |
1.7 |
133 |
| ● Placenta previa |
2.0 |
0.006 |
<0.001-0.014 |
1.6 |
133 |
| ● Abruptio placentae |
4.8 |
0.005 |
<0.001-0.013 |
1.9 |
133 |
| ● Uterine rupture |
0.1 |
0.006 |
<0.001-0.015 |
1.1 |
133 |
| ● Fetal malformation |
3.2 |
0.133 |
0.051-0.215 |
18.9 |
133 |
| ● Fetal macrosomia |
1.7 |
0.002 |
<0.001-0.008 |
1.4 |
133 |
| ● Maternal choice |
1.0 |
0.037 |
0.008-0.065 |
7.2 |
133 |
| ● Other |
17.1 |
0.082 |
0.027-0.137 |
14.9 |
133 |
| Type of incision (segmental transverse) | 96.3 | 0.193 | 0.081-0.304 | 13.5 | 126 |