References 

 1 Zhou W, Sorenson HT, Olsen H. Induced Abortion
   and Subsequent Pregnancy Duration. Obstetrics &
   Gynecology 1999;94:948-953

 2 Berkowitz GS. An Epidemiologic Study of Preterm
   Delivery. American J Epidemiology 1981;113:81-92

 3 Lang JM, Lieberman E, Cohen A.  A  Comparison 
   of Risk Factors for Preterm Labor and Term 
   Small-for-Gestational-Age Birth. Epidemiology  
   1996;7:369-376

 4 Lieberman E, Ryan KJ, Monson RR, Schoenbaum SC.
   Risk Factors Accounting For Racial Differences 
   in the rate of premature birth. NEJM 1987;317:743-748

 5*Hillier SL, Nugent RP, Eschenbach DA, Krohn MA. Association
   Between Bacteria Vaginosis and Preterm Delivery of a Low 
   Birth Weight Infant. NEJM 1995;333:1737-1742

 6 Shoenbaum LS, Monson RR. No association between coffee consumption
   and adverse outcomes of pregnancy. NEJM 1982;306:141-145

 7 Mueller-Heubach E, Guzick DS. Evaluation of 
   risk scoring in a preterm birth prevention 
   study of indigent patients. Am J Obstetrics 
   & Gyn  1989;160:829-837

 8 Shiono PH, Lebanoff MA.  Ethnic  Differences  
   and  Very Preterm Delivery. Am J Public Health  
   1986;76:1317-1321

 9 Pantelakis SN, Papadimitriou GC, Doxiadis SA.
   Influence of induced and spontaneous abortions
   on the outcome of subsequent pregnancies. Amer
   J Obstet Gynecol. 1973;116:799-805

10 Lumley J. The association between prior spon-
   taneous abortion, prior induced abortion and
   preterm birth in first singleton births.
   Prenat Neonat Med 1998;3:21-24.

11 Van Der Slikke JW, Treffers PE. Influence of 
   induced abortion on gestational  duration in 
   subsequent pregnancies. BMJ 1978;1:270-272 [PB risk
   for gestation less than 32 weeks is statistically
   significant]

12 Richardson JA, Dixon G. Effect of legal termin-
   ation on subsequent pregnancy. British Med J
   1976;1:1303-1304

13 Pickering RM, Deeks JJ. Risks of Delivery during
   20th to the 36th Week of Gestation. Intl. J
   Epidemiology 1991;20:456-466

14 Koller O, Eikhom SN. Late Sequelae of Induced
   Abortion in Primigravidae. Acta Obstet Gynecol
   Scand 1977;56:311-317

15 Papaevangelou G, Vrettos AS, Papadatos D, Alexiou
   C. The Effect of Spontaneous and Induced Abortion
   on Prematurity and Birthweight. The J Obstetrics
   and Gynaecology of the British Commonwealth. May
   1973;80:418-422

16 Bognar Z, Czeizel A.  Mortality  and  Morbidity  
   Associated with Legal Abortions in Hungary, 1960-1973. 
   AJPH 1976;66:568-575

17 Martius JA, Steck T, Oehler MK, Wulf K-H. Risk
   factors associated with preterm (<37+0 weeks) and
   early preterm (<32+0 weeks): univariate and multi-
   variate analysis of 106 345 singleton births from
   1994 statewide perinatal survey of Bavaira.
   European J Obstetrics & Gynecology Reproductive
   Biology 1998;80:183-189

18 Vasso L-K, Tzcumaka-Bakoula C, Golding J. Previous obstetric
   history and subsequent preterm delivery in Greece. Eur J Obstet/
   Gyn Reprod Biology 1990;37:99-109
 
19*Ancel RY, Saurel-Cubizolles M-J, Di Renzo GC, Papiernik E. Very and
   moderate preterm births: are the risk factors different? Brit J
   Obstet/Gyn 1999;106:1162-1170

20 Lumley J. The epidemiolgy of preterm birth. Bailliere's Clin Obstet/
   Gyn 1993;7(3):477-498

21*Michielutte R, Ernest JM, Moore ML, Meis PJ, Sharp PC, Wells HB, 
   Buescher PA. A Comparison of Risk Assessment Models for Term and 
   Preterm Low Birthweight. Preventive Medicine 1992;21:98-109

22 Gindel B, Lubinski H, Voigt M. Induced abortion in primigravidae 
   and subsequent pregnancy, with particular attention to underweight.
   Zentrlbl Gynaekol 1979;101:1009-1014

23 Kreibich H, Ludwig A. Early and late complications of abortion in
   juvenile prmigravidae (including recommended measures). Z Aerztl
   Fortbild (Jena) 1980;740:311-316

24 Zwahr C, Voight M, Kunz L, et al. Relationships between interruption
   abortion and premature birth and low birth weight. Zentrabl Gynaekol
   1980;102:738-747

25 Pickering RM, Forbes J. Risk of preterm delivery and small-for-
   gestational age infants following abortion: a population study. 
   British J Obstetrics and Gynecology  1985;92:1106-1112

26 Luke B, Every Pregnant Woman's Guide to Preventing Premature Birth 
   (1995, pp. 32-33)

27 Roberts JM. Obstetrics     Recent Advances. BMJ 2000;321:33-35

28 Holzman C, Paneth N. Preterm Birth: From Prediction to 
   Prevention. Amer J Public Health 1998;88:183-184

29 Goldenberg R, Andrews WW. Editorial: Intauterine Infection and
   why Preterm Prevention Programs have failed. Amer J Publich Health
   1996;86:781-783

30 Mueller-Heubach E, Rubinstein DN, Schwarz SS. Histologic chorio-
   amnionitis and preterm delivery in different patient populations.
   Obstet Gynecol 1990;75:622-626

31 Daling JR, Krohn MA, Miscarriage or Termination  in the Immediately
   Preceding Pregnancy Increases the Risk of Intraamniotic Infection in
   the Following Pregnancy. American J Epi 1992;136:1013 [SER Abstracts]

32 Escobar GJ, Littenberg B, Petitti DB. Outcome among surviving very low 
   birthweight infants; a meta-analysis. Arch Dis Child 1991;66:204-211

33 Potts M. Legal Abortion in Eastern Europe. Eugenics Review
   1967;59:232-250

34 Gissler M, Kauppila R, Merilainen J, Toukomaa H, Elina Hemminki E. 
   Pregnancy-associated deaths in Finland 1987-1994 - definition 
   problems and benefits of record linkage. Acta Obstet Gyn Scand 
   1997;76:651-657

35 Gersh ES.  Children with Cerebral Palsy: a parent's
   guide / edited by Elaine Geralis. 1998; chapter 1:
   page 14 [Bethesda, Maryland: Woodbine House; ISBN
   0933149824]

36 Obel E. Acta Obstet Gynecol Scand 1979;58:147-152.

37 Levin A et al. JAMA 1980;243(24):2495-2499.

38 Legrillo V. Final report to NICHD. Albany, NY:
   New York State Health Department, 1980.

39 World Health Organization Task Force on the
   Sequelae of Abortion.� Lancet 1979;1:142-145.

40 Ratten G et al. Med J Aurtralia June 1979:479-480

41 Roht LH et al. Acta Obstet Gynaecol Jpn 1976;23:140-145

42 Harlap S, Davies AM. Late sequelae of induced abortion: 
   Complications and Outcome of Pregnancy and Labor. Amer J 
   Epidemiology 1975;102:219-224

43 Seidman DS et al. J Epi Community Health 1988;42:294-298

*� studies that included spontaneous and induced
   abortions but did not report PB risk separately for each
............................................................

copyright Brent Rooney ( [email protected] )