Research Article

Biodemographic Analysis of Factors Related to Perinatal Mortality in Portugal (1988–2011)

Table 1

Yearly frequency of stillbirths, early neonatal deaths, and total births. Rates of stillbirths and early neonatal deaths. Proportion stillbirth rate/early neonatal rate.

YearStillbirthsStillbirths rateEarly neonatalEarly neonatal rateTotal birthsProportion

198811529.708166.941187111.40
1989115610.047246.351151101.58
199010108.945985.341129311.67
19919848.726165.501128971.58
19929098.154944.461115481.83
19938878.044193.831103452.10
19948257.813273.121055772.50
19957477.223333.241034902.23
19967597.133233.061064242.33
19976926.352992.761089372.30
19986876.282882.651093392.37
19996716.032632.381112702.54
20006966.052552.231151352.71
20016626.142061.921078093.19
20025925.413423.141094461.72
20035084.742642.481071591.92
20044284.132592.511036671.65
20054344.182152.081037812.01
20073774.182122.24970271.86
20083413.892172.19979131.77
20093813.482432.22935731.57
20103344.071332.61949361.56
20112953.521871.41905572.50

Stillbirths and early neonatal deaths regardless of duration of gestation. Early neonatal deaths: under one week of life. Denominator for the stillbirth rate is equal to the sum of live births plus stillbirths. Denominator for the early neonatal mortality rate is equal to live births.