Infectious Diseases in Obstetrics and Gynecology / 2011 / Article / Tab 1

Research Article

Histological Chorioamnionitis Is Increased at Extremes of Gestation in Stillbirth: A Population-Based Study

Table 1

Demographic details of stillborn cohort.

Variablen = numberPercentage (n/N)

*Maternal age group (year s)
 < 20444.9
 20–2414315.9
 25–2924627.3
 30–3427530.5
 35–3914816.4
 ≥40454.8
*Primigravid
 Yes42346.9
 No47853.1
*Preexisting diabetes
 Yes161.8
 No88598.2
*Gestational diabetes
 Yes273
 No87497
Chronic hypertension
 Yes293
 No92397
Preeclampsia
 Yes596.2
 No89393.8
Labour onset
 Spontaneous30331.8
 Induced53456.1
  No labour10511
 Not stated101.1
Delivery type
 Vaginal57760.6
 Forceps161.7
 Ventouse151.6
 Vaginal breech18119
 Caesarean15115.9
 Other80.8
 Not stated40.4
Antepartum stillbirth
 Yes86490.8
 No889.2
Baby gender
 Male46548.8
 Female47650
 Indeterminate40.4
 Not stated70.7
Unexplained stillbirth
 Yes46949.3
 No48350.7
Spontaneous onset of labour
 Yes30331.8
 No64968.2
Weight < 10th Percentile**
 Yes21722.8
 No73577.2
Post mortem performed
 Yes39341.3
 No55958.7
Gestational age (weeks)
 20–2422824
 25–2917818.7
 30–3625927.2
  ≥3728730.1

*Data for these variables collected from MDC available on 901/952 stillborn babies.
**Calculated using Australian National Birth weight Percentiles [31].