Change in medical practice over time? A register based study of regional trends in hysterectomy in Finland in 2001-2018.

BACKGROUND: A persistent research finding in Finland and elsewhere has been variation in medical practices both between and within countries. Variation seems to exist especially if medical decision making involves discretion and the best treatment cannot be identified unambiguously. This is true for hysterectomy when performed for benign causes. The aim of the current study was to investigate regional trends in hysterectomy in Finland and the potential convergence of rates over time. METHODS: We used hospital discharge register data on hysterectomies performed, diagnoses, age, and region of residence to examine hospital discharges for women undergoing hysterectomy in 2001-2018 among total female population aged 25 years or older in Finland. We examined hysterectomy rates among biannual cohorts by indication, calculated age-standardised rates and used multilevel models to analyse potential convergence over time. RESULTS: Altogether 131,695 hysterectomies were performed in Finland 2001-2018. We found a decreasing trend, with the age-adjusted overall hysterectomy rate decreasing from 553/100,000 person years in 2001-2002 to 289/100,000 py in 2017-2018. Large but converging regional differences were found. The correlations between hospital district intercepts and slopes in time ranged from - 0.71 to - 0.97 (p < 0.001) suggesting diminishing variation. CONCLUSIONS: Our findings demonstrate that change in hysterectomy practices and more uniformity across regions are achievable goals. Regional variation still exists suggesting differences in medical practices.

Effects of anemia and iron deficiency on quality of life in women with heavy menstrual bleeding.

OBJECTIVE: To assess the impact of anemia and iron deficiency on health-related quality of life (HRQoL) in women treated for heavy menstrual bleeding (HMB). DESIGN: Secondary analysis of a randomized controlled trial. SETTING: Five university hospitals in Finland. SAMPLE: A total of 236 women referred for HMB. METHODS: Women were randomized to treatment with hysterectomy or a levonorgestrel-releasing intrauterine system. We defined groups based on women's pretreatment hemoglobin [hemoglobin <120 g/L (anemic) vs. hemoglobin ≥120 g/L (nonanemic)] and serum ferritin (ferritin <15 µg/L vs. ≥15 µg/L) concentrations. HRQoL was compared between groups at baseline, 6 and 12 months after treatment. Hemoglobin and ferritin were followed for 5 years. MAIN OUTCOME MEASURES: HRQoL was measured by the RAND 36-item health survey (RAND-36), 5-Dimensional EuroQol and two questionnaires of mental wellbeing. RESULTS: At baseline, 63 women (27%) were anemic and 140 (60%) were severely iron deficient (ferritin <15 µg/L). Only 8% of the anemic women had taken iron supplementation. Twelve months after treatment hemoglobin had increased in both hemoglobin groups, but was still significantly lower (p < 0.001) in initially anemic women (128 g/L) compared with nonanemic women (136 g/L). Twelve months after treatment three domain scores of RAND-36 increased more (energy, p = 0.002; physical functioning, p = 0.04; social functioning, p = 0.05), and anxiety (p = 0.02) and depression scores (p = 0.002) decreased more in anemic compared with nonanemic women. Serum ferritin took 5 years to reach normal levels. CONCLUSIONS: Improved HRQoL after treatment of HMB is associated with correction of anemia. Clinicians should actively screen for anemia in women with HMB and emphasize early iron substitution as an integral part of treatment.

Quality of life and costs of levonorgestrel-releasing intrauterine system or hysterectomy in the treatment of menorrhagia: a 10-year randomized controlled trial.

OBJECTIVE: Menorrhagia is a common problem impairing the quality of life (QOL) of many women. Both levonorgestrel-releasing intrauterine system (LNG-IUS) and hysterectomy are effective treatment modalities but no long-term comparative studies of QOL and costs exist. The objective of this study was to compare QOL and costs of LNG-IUS or hysterectomy in the treatment of menorrhagia during 10-year follow-up. STUDY DESIGN: A total of 236 women, aged 35-49 years, referred for menorrhagia to 5 university hospitals in Finland were randomly assigned to treatment with LNG-IUS (n = 119) or hysterectomy (n = 117) and were monitored for 10 years. The main outcome measures were health-related QOL (HRQOL), psychosocial well-being, and cost-effectiveness. RESULTS: A total of 221 (94%) women were followed for 10 years. Although 55 (46%) women assigned to the LNG-IUS subsequently underwent hysterectomy, the overall costs in the LNG-IUS group ($3423) were substantially lower than in the hysterectomy group ($4937). Overall, levels of HRQOL and psychosocial well-being improved during first 5 years but diminished between 5 years and 10 years and the improved HRQOL returned close to the baseline level. There were no significant differences between LNG-IUS and hysterectomy groups. CONCLUSION: Both LNG-IUS and hysterectomy improved HRQOL. The improvement was most striking during the first 5 years. Although many women eventually had hysterectomy, LNG-IUS remained cost-effective.

The effect of hysterectomy or levonorgestrel-releasing intrauterine system on premenstrual symptoms in women treated for menorrhagia: secondary analysis of a randomized controlled trial.

OBJECTIVE: To study the effect of hysterectomy or levonorgestrel-releasing intrauterine system (LNG-IUS) on premenstrual symptoms in women treated for menorrhagia. DESIGN: Secondary analysis of a randomized controlled trial. SETTING: Five university hospitals in Finland. SAMPLE: A cohort of 236 women, aged 35-49 years (mean 43 years) referred for menorrhagia between 1994 and 1997. Women were not diagnosed with premenstrual syndrome. METHODS: Women were randomized to treatment by hysterectomy (n=117) or LNG-IUS (n=119). Analyses were performed using the intention-to-treat and actual treatment principles. Women using estrogen therapy and women who underwent bilateral salpingo-oophorectomy were excluded from the analyses. MAIN OUTCOME MEASURES: The occurrence of premenstrual symptoms evaluated by questionnaires at baseline and at follow-up visits six and 12 months after the treatment and five years after the randomization. RESULTS: Premenstrual symptoms decreased significantly in both groups by six months (p≤0.028) without significant differences between the groups, except that in the LNG-IUS group the decrease of breast tenderness was seen first by 12 months (p=0.048). Even though 42% of the women assigned to treatment with LNG-IUS were hysterectomized during the follow-up period, the results of intention-to-treat and actual treatment analyses were comparable. CONCLUSIONS: Both hysterectomy and LNG-IUS seem to alleviate premenstrual symptoms of women treated for menorrhagia, while the effect of these treatments on premenstrual syndrome remains unsettled.

The effect of hysterectomy or levonorgestrel-releasing intrauterine system on lower abdominal pain and back pain among women treated for menorrhagia: a five-year randomized controlled trial.

OBJECTIVE: The purpose of this study was to evaluate the changes in lower abdominal pain and back pain among women with menorrhagia treated by hysterectomy or levonorgestrel-releasing intrauterine system (LNG-IUS). DESIGN: A randomized controlled trial. SETTING: Five university hospitals in Finland. SAMPLE: A total of 236 women, aged 35-49 years. METHODS: Women were randomly assigned to treatment by hysterectomy (n = 117) or LNG-IUS (n = 119). MAIN OUTCOME MEASURES: Frequency and intensity of lower abdominal pain and back pain were evaluated by questionnaires at baseline and after 6 months, 12 months and 5 years. RESULTS: By six months, women in both groups had less frequent back pain than before treatment (p < 0.001). Lower abdominal pain decreased only in the hysterectomy group (p = 0.02) with significant differences between the groups. Between 12 months and 5 years, frequency of lower abdominal pain (p = 0.05) and back pain (p = 0.002) decreased more in the LNG-IUS group than in the hysterectomy group. Between baseline and five years, the lower abdominal pain score (including frequency and intensity of pain) decreased in both groups (p < 0.001, p = 0.01). Back pain score decreased only in the LNG-IUS group and the difference between the groups was significant (p = 0.02). However, some women experienced more pain after both treatments than before treatment. In multivariate analyses, LNG-IUS use was associated with a decrease in lower abdominal pain and back pain. CONCLUSIONS: In the treatment of menorrhagia, both hysterectomy and LNG-IUS decrease lower abdominal pain. LNG-IUS use, but not hysterectomy, has beneficial effects on back pain.