References
- Tanner J M. Trends toward earlier menarche in London, Oslo, Copenhagen, the Netherlands and Hungary. Nature 1973; 243: 95–6
- Helm P. Menarche i Danmark fra 1830′ erne til 1983 (Menarche in Denmark from the 1830s to 1983). Ugeskr Laeger 1984; 146: 3902–4, English Summary
- Brudevoll J E, Liestøl K, Walløe L. Menarcheal age in Oslo during the last 140 years. Ann Human Biol 1979; 6: 407–16
- Presser H B. Age at menarche, socio-sexual behavior and fertility. Soc Biol 1978; 25: 94–101
- Udry J R. Age at menarche, at first intercourse, and at first pregnancy. J Biosoc Sci 1979; 11: 433–41
- Liestøl K. Menarcheal age and spontaneous abortion: A causal connection. Am J Epidemiol 1980; 111: 753–8
- Mayaux M J, Spira A, Schwartz D. Menarcheal age and spontaneous abortion: A causal connection. Am J Epidemiol 1983; 117: 377–8
- Sandler D P, Wilcox A J, Homey L F. Age at menarche and subsequent reproductive events. Am J Epidemiol 1984; 119: 765–74
- Lidegaard Ø, Helm P, Kreiner S. Metode ved under-søgelse af seksual- og kontraceptionsvaner blandt 15–54-årige kvinder (Methods of investigation of sexual and contraception habits among women aged 15–54). Nord Sexol 1989; 7: 243–54
- Enevoldsen B, Michelsen N, Friis-Hasché E, Kamper-Jørgensen F. Sociale klassifikationer (Social classifications. II. Svalastoga's subdivision according to social status rank and the social grouping employed by the Institute for Social Research). Ugeskr Laeger 1980; 142: 544–50, English Summary
- Kreiner S. Analysis of multidimensional contingency tables by exact conditional tests. Techniques and statistics. Scand J Stat 1987; 14: 97–112
- Bojlén K N, Rasch G, Bentzon M W. The age incidence of the menarche in Copenhagen. Acta Obstet Gynecol Scand 1954; 33: 405–32
- Helm P, Helm S. Decrease in menarcheal age from 1966 to 1983 in Denmark. Acta Obstet Gynecol Scand 1984; 63: 633–5
- Garde K, Lunde I. Influence of social status on female sexual behaviour. A random sample study of 40-year-old Danish women. Scand J Prim Health Care 1984; 1: 5–10
- Nielsen I L, Fog E, Larsen G K, Madsen J, Garde K, Kelstrup J. 70-årige kvinders seksuelle adærd, oplevelse, viden og holdning (A presentation of the sexual behaviour, experience, knowledge and attitudes of 70-year-old women). Ugeskr Laeger 1986; 148: 2863–6, English Summary
- Nielsen I L, Larsen G K, Fog E, Madsen J, Garde K, Kelstrup J. 22-årige kvinders seksuelle adfærd, opleveise, viden og holdning (A presentation of the sexual behaviour, experience, knowledge and attitudes of 22-year-old women). Ugeskr Laeger 1986; 148: 2866–9, English Summary
- Lidegaard Ø, Helm P. Sexual and reproductive life events in relation to duration of oral contraceptive use. Contraception 1988; 38: 69–77
- Weström L. Incidence, prevalence, and trends of acute pelvic inflammatory disease and its consequences in industrialized countries. Am J Obstet Gynecol 1980; 138: 880–92
- Clarke E A, Hatcher J, Meckeoven-Eysse G E, Lickrich G M. Cervical dysplasia: Association with sexual behavior, smoking, and oral contraceptive use. Am J Obstet Gynecol 1985; 151: 612–6