References
- Walles B, Tyden T, Herbst A, Ljungblad U, Rydhström H. Maternal health care program and markers for late fetal death. Acta Obstet Gynecol Scand 1994; 73: 773–8.
- Salinas AM, Coria I, Reyes H, Zambrana M. Effect of quality of care on preventable perinatal mortality. Int J Qual Health Care 1997; 9: 93–9.
- Greenberg RS. The impact of prenatal care in different social groups. Am J Obstet Gynecol 1983; 145: 797–801.
- Blondel B, Dutilh P, Delour M, Uzan S. Poor antenatalcare and pregnancy outcome. Eur J Obstet Gynecol Reprod Biol 1993; 50: 191–6.
- Insler V, Larholt K, Hagay ZJ et al. The impact of prenatal care on the outcome of pregnancy. Eur J Obstet Gynecol Reprod Biol 1986; 23: 211–23.
- Gudmundsson S, Bjorgvinsdottir L, Molin J, Gunnarsson G, Marsal K. Socioeconomic status and perinatal outcome according to residence area in the city of Malmö. Acta Obstet Gynecol Scand 1997; 76: 318–23.
- Mant J, Hicks N. Detecting differences in quality of care: the sensitivity of measures of process and outcome in treating acute myocardial infarction. BMJ 1995; 311: 793–6.
- Hall MH. Audit of antenatal care. Fetal and Maternal Medicine Review 1993; 5: 19–27.
- Vause S, Maresh M. Indicators of quality of antenatal care: a pilot study. Br J Obstet Gynaecol 1999; 106: 197–205.
- Ministry of Welfare of the Republic of Latvia Medical Statistics Bureau. Yearbook of Latvian Maternal and Infant Health Care 1996; 1997: 12–14.
- Langhoff-Roos J, Borch-Christensen H, Larsen S, Lindberg B, Wennergren M. Potentially avoidable perinatal deaths in Denmark and Sweden 1991. Acta Obstet Gynecol Scand 1996; 75: 820–5.
- Keeping JD, Chang AM, Morrison J, Esler EJ. Poor antenatal care and obstetric performance. Aust NZ J Obstet Gynaecol 1980; 20: 139–43.
- Poland M, Ager JW, Olson JM. Barriers to receiving adequate prenatal care. Am J Obstet Gynecol 1987; 157: 297–303.
- Cooney JP What determines the start of prenatal care? Prenatal care, insurance and education. Med Care 1985; 23: 986–97.
- Kaliszer M, Kidd M. Some factors affecting attendance of antenatal clinics. Soc Sci Med 1981; 15D: 421–4.
- McDonald TP, Coburn A. Predictors of prenatal care utilization. Soc Sci Med 1988; 27: 167–72.
- Cnattingus S, Nordstrom ML. Maternal smoking and fetoinfant mortality: biological pathways and public health significance. Acta Paediatr 1996; 85: 1400–2.
- Haddow JE, Knight GJ, Kloza EM, Palomaki GE, Wald NJ. Cotinine-assisted intervention in pregnancy to reduce smoking and low birth weight delivery. Br J Obstet Gynaecol 1991; 98: 859–65.
- Hjalmarson AJ, Hahn L, Svanberg B. Stopping smoking in pregnancy: effect of a self-help manual in controlled trial. Br J Obstet Gynaecol 1991; 98: 260–4.
- Fretts R, Smittdiel J, McLean F, Usher R, Goldman M. Increased maternal age and the risk of fetal death. N Engl J Med 1995; 333: 953–7.
- Ahlenius I, Thomassen P The changing panorama of late fetal death in Sweden between 1984 and 1991. Acta Obstet Gynecol Scand 1999; 78: 408–14.
- MacArthur C, Newton JR, Knox EG. Effect of antismoking health education on infant size at birth. Br J Obstet Gynaecol 1987; 94: 295–300.
- Sexton M, Hebel JR. A clinical trial of change in maternal smoking and its effect on birth weight. JAMA 1984; 251: 911–15.