David Wolfers
Biographic Data
| ID | 755755 |
|---|---|
| NAME | David Wolfers |
| GIVEN NAMES | David |
| FAMILY NAME | Wolfers |
| SIGNATURE | WOLFERS D |
| AFFILIATIONS | University of London |
| VERIFIED | No |
| TOTAL WORKS | 9 |
| TOTAL CITATIONS | 29 |
| WORKS AS AUTHOR | 9 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1968 |
| LATEST PUBLICATION YEAR | 1975 |
| H-INDEX | 3 |
Child survival and intervals between pregnancies in Guayaquil, Ecuador
Intervals between births to 1934 women from poor areas of Guayaquil, Ecuador, were subjected to analysis to determine what effect on survival chances of their children, if any, was exerted by differences in these intervals. The analysis showed that risks of miscarriage and stillbirth were increased when the interval between last termination of pregnancy and conception was either very short or very long. Post-neo-natal mortality was strongly influ…
Vasectomy and vasectomania
Contraceptive overlap with post-partum anovularity
Contraceptive use in the early post-partum months is, for the majority of women, without any direct protective value because, whilst not ovulating, they are not exposed to the risk of pregnancy. This does not, of course, imply that contraception should be delayed until signs of the resumption of ovulation appear, as for many women the first sign of such resumption is pregnancy. There are, besides, logistic and psychological reasons which make ear…
The case against zero growth
A rising tide of opinion, particularly in the U.S.A., is calling for the immediate adoption of a policy of zero population growth, both for individual countries and the world as a whole. The arguments adduced relate principally to the quality of human life, pollution of the environment, and consumption of non‐renewable resources. In fact, the attainment of zero growth, if it were possible, would not advance these objectives. Population growth mus…
The Singapore Family Planning Program
The Singapore Family Planning Program: further evaluation data. D WolfersCopyRight https://doi.org/10.2105/AJPH.60.12.2354 Published Online: August 29, 2011
The probability of conception after discontinuance of oral contraception
Westoff Bumpass and Ryder (1969) conclude that no difference exists in the time required to conceive between women who have used oral contraception (OC) and women who have used other contraceptive methods. Yet the data on which this conclusion is based suggest a different interpretation. A table summarizes the data. Essentially the table is an extract of a life table in which only the probability of survival without becoming pregnant to the end o…
The demographic effects of a contraceptive programme
The calculation of the number of births prevented for each item of contraceptive service provided entails the integration of a variety of factors relating to the potential fertility of users and the duration and effectiveness of use. This article differs from previous essays of this kind in that estimates of future potential fertility are based not on fertility rates but on age-specific means of inter-live birth intervals, modified by periods of …
An evaluation criterion for a national family planning program
An evaluation criterion for a national family planning program. D WolfersCopyRight https://doi.org/10.2105/AJPH.58.8.1447 Published Online: August 29, 2011
Determinants of birth intervals and their means
1. The duration of post-partum infecundity; 2. Fecundability; 3. Duration of pregnancy
Child survival and intervals between pregnancies in Guayaquil, Ecuador
Intervals between births to 1934 women from poor areas of Guayaquil, Ecuador, were subjected to analysis to determine what effect on survival chances of their children, if any, was exerted by differences in these intervals. The analysis showed that risks of miscarriage and stillbirth were increased when the interval between last termination of pregnancy and conception was either very short or very long. Post-neo-natal mortality was strongly influ…
Determinants of birth intervals and their means
1. The duration of post-partum infecundity; 2. Fecundability; 3. Duration of pregnancy
The demographic effects of a contraceptive programme
The calculation of the number of births prevented for each item of contraceptive service provided entails the integration of a variety of factors relating to the potential fertility of users and the duration and effectiveness of use. This article differs from previous essays of this kind in that estimates of future potential fertility are based not on fertility rates but on age-specific means of inter-live birth intervals, modified by periods of …
Contraceptive overlap with post-partum anovularity
Contraceptive use in the early post-partum months is, for the majority of women, without any direct protective value because, whilst not ovulating, they are not exposed to the risk of pregnancy. This does not, of course, imply that contraception should be delayed until signs of the resumption of ovulation appear, as for many women the first sign of such resumption is pregnancy. There are, besides, logistic and psychological reasons which make ear…
An evaluation criterion for a national family planning program
An evaluation criterion for a national family planning program. D WolfersCopyRight https://doi.org/10.2105/AJPH.58.8.1447 Published Online: August 29, 2011
Determinants of birth intervals and their means
1. The duration of post-partum infecundity; 2. Fecundability; 3. Duration of pregnancy
The demographic effects of a contraceptive programme
The calculation of the number of births prevented for each item of contraceptive service provided entails the integration of a variety of factors relating to the potential fertility of users and the duration and effectiveness of use. This article differs from previous essays of this kind in that estimates of future potential fertility are based not on fertility rates but on age-specific means of inter-live birth intervals, modified by periods of …
The case against zero growth
A rising tide of opinion, particularly in the U.S.A., is calling for the immediate adoption of a policy of zero population growth, both for individual countries and the world as a whole. The arguments adduced relate principally to the quality of human life, pollution of the environment, and consumption of non‐renewable resources. In fact, the attainment of zero growth, if it were possible, would not advance these objectives. Population growth mus…
The Singapore Family Planning Program
The Singapore Family Planning Program: further evaluation data. D WolfersCopyRight https://doi.org/10.2105/AJPH.60.12.2354 Published Online: August 29, 2011
The probability of conception after discontinuance of oral contraception
Westoff Bumpass and Ryder (1969) conclude that no difference exists in the time required to conceive between women who have used oral contraception (OC) and women who have used other contraceptive methods. Yet the data on which this conclusion is based suggest a different interpretation. A table summarizes the data. Essentially the table is an extract of a life table in which only the probability of survival without becoming pregnant to the end o…
Contraceptive overlap with post-partum anovularity
Contraceptive use in the early post-partum months is, for the majority of women, without any direct protective value because, whilst not ovulating, they are not exposed to the risk of pregnancy. This does not, of course, imply that contraception should be delayed until signs of the resumption of ovulation appear, as for many women the first sign of such resumption is pregnancy. There are, besides, logistic and psychological reasons which make ear…
Child survival and intervals between pregnancies in Guayaquil, Ecuador
Intervals between births to 1934 women from poor areas of Guayaquil, Ecuador, were subjected to analysis to determine what effect on survival chances of their children, if any, was exerted by differences in these intervals. The analysis showed that risks of miscarriage and stillbirth were increased when the interval between last termination of pregnancy and conception was either very short or very long. Post-neo-natal mortality was strongly influ…
Vasectomy and vasectomania
Population (6 works) · Demography (5 works) · Global Maternal and Child Health (5 works) · Family planning (4 works) · Medicine (4 works) · Research methodology (4 works) · Sociology (4 works) · Environmental health (3 works) · Gynecology (3 works) · Obstetrics (3 works)