Influence of Sexual Function on the Social Relations and Quality of Life of Women with Premature Ovarian Insufficiency

Abstract

Objective To evaluate the impact of sexual function (SF) in the quality of life (QoL) of women with premature ovarian insufficiency (POI).

Methods Case-control study in which 80 women with POI were evaluated using estrogen plus progestogen therapy, compared with 80 women matched by age (±2 years) and presenting preserved gonadal function. Sexual function was evaluated using the Female Sexual Function Index (FSFI), and the QoL was evaluated using the World Health Organization's (WHO) QoL assessment instrument (WHOQoL-BREF).

Results The mean age of the women with POI and of the control group was 38.4 ± 7.3 years and 38.1 ± 7.3 years respectively. The QoL, was worse among the POI group, and there were significant differences in the physical (63.4 ± 17.4 and 72.7 ± 15.2 respectively, p = 0.0004) and psychological (63.2 ± 14.6 and 69.3 ± 13.9 respectively, p = 0.0075) domains among this group when compared with the control group. Women with POI presented significantly lower arousal, lubrication, orgasm and satisfaction, more dyspareunia and a worse FSFI scores when compared with the control group. All aspects of SF correlate directly with the worsening of the QoL regarding social relationships.

Conclusion Women with POI showed worse QoL and SF than the control group. The psychological aspects (desire, excitement, orgasm and sexual satisfaction) of SF had greater influence on the parameters of the QoL, while the physical aspects (pain and lubrication) had a low impact on the QoL. The poor SF in women with POI is directly correlated with a worsening across multiple domains of the QoL; however, the negative impact is particularly important in the social domain. These results suggest that the improvement in sexuality can improve the social interactions of women with POI.

Resumo

Objetivo Avaliar o impacto da função sexual na qualidade de vida (QV) de mulheres com insuficiência ovariana prematura (IOP).

Métodos Estudo de caso-controle que avaliou 80 mulheres com IOP usando terapia hormonal combinada (progestagênio e estrogênio), em comparação com 80 mulheres com função gonadal preservada pareadas por idade (±2 anos). A função sexual (FS) foi avaliada por meio do índice de função sexual feminina (IFSF) e a QV, por meio do instrumento da Organização Mundial de Saúde (OMS) para avaliação da QV (WHOQoL-BREF, na sigla em inglês).

Resultados A média etária das mulheres com IOP e do grupo controle foi de 38,4 ± 7,3 e 38,1 ± 7,3 anos, respectivamente. A QV do grupo com IOP foi pior, e verificou-se uma diferença significativa nos domínios físico (63,4 ± 17,4 e 72,7 ± 15,2, respectivamente, p = 0,0004) e psicológico (63,2 ± 14,6 e 69,3 ± 13,9, respectivamente, p = 0,0075) para as mulheres com IOP quando comparadas com o grupo de controle. Mulheres com IOP apresentaram pior pontuação para excitação, lubrificação, orgasmo, satisfação, dispareunia, e pior índice de FS em comparação ao grupo controle. A piora em todos os aspectos da FS foi diretamente correlacionada com a piora no domínio das relações sociais da QV.

Conclusão Mulheres com IOP apresentaram pior QV e FS do que o grupo controle. Os aspectos psicológicos (desejo, excitação, orgasmo e satisfação sexual) da FS exerceram grande influência na QV, enquanto os físicos (dor e lubrificação) exerceram pouca influência. A má função sexual em mulheres com IOP está diretamente correlacionada com uma piora em vários domínios da QV; porém, o impacto negativo é particularmente importante no domínio social, sugerindo que a melhora da sexualidade pode auxiliar na melhor integração social das mulheres com IOP.

Keywords

premature ovarian insufficiency - sexual disorders - quality of life

Palavras-Chave

insuficiência ovariana prematura - distúrbios sexuais - qualidade de vida

Introduction

Premature ovarian insufficiency (POI) is a condition characterized by elevated gonadotrophins and sex steroid deficiency, which occurs in women under 40 years of age.[1] [2] It has physical and psychological consequences.[3] [4] [5] [6] [7] [8] Thus, young women with POI are more prone to present alterations in their sexuality[9] [10] [11] and quality of life (QoL),[12] [13] causing tremendous damage to their relationships and self-esteem. The QoL of women with POI mainly affects their physical and psychological health;[11] [13] however, the influence of impaired sexual function (SF) on the QoL of women with POI is empirical and based on population studies of menopausal women at normal term age and/or presenting chronic diseases.[5] [14] There are several definitions of QoL; however, an analysis of these definitions suggests that QoL is a subjective construct, developed from objective aspects of existence and individual experience. Among the factors that influence QoL, sexuality should be regarded as a high-complexity factor.[6] [7] Considering that a poor SF (characterized by a sexual dysfunction) may negatively influence the QoL, and that the lack of knowledge limits the possibility of structuring specialized medical and psychological care for POI patients, this study aims to provide information about the aspects of sexuality that can influence different domains of QoL and how they are interrelated.

Methods

A case-control study matched by age was performed in the Gynecological Endocrinology Outpatient Clinic of the Department of Obstetrics and Gynecology of our institution.

This study evaluated 80 women diagnosed with POI (hypergonadotropic hypoestrogenic amenorrhea before 40 years of age, with follicle-stimulating hormone [FSH] levels ≥ 40 mIU/mL at 2 different periods of time)[1] who were receiving care at the Gynecological Endocrinology Outpatient Clinic of our institution for a period of 24 months. All of the women included were treated with estrogen plus progestogen therapy (estradiol plus norethisterone, conjugated estrogens plus medroxyprogesterone, ethinyl estradiol plus levonorgestrel, according to a precise indication). Each one was compared with a woman of the same age (± 2 years, control group), who was followed at the Family Planning Outpatient Clinic of the same center, and who presented preserved gonadal function (spontaneous menstrual cycles with intervals of 24 to 35 days),[15] with no use of hormonal drugs or hormonal contraceptives. Each woman should have had at least one heterosexual intercourse in the previous month.

Women who presented chronic diseases that could affect QoL or sexuality, or who used drugs that could interfere with sexuality (such as antidepressants), and those who presented cognitive deficit were excluded to reduce potential sources of bias from both groups. The women in both groups were interviewed individually by the researcher, who used questionnaires to assess SF (the Female Sexual Function Index, FSFI) and QoL (the World Health Organization's [WHO] QoL assessment instrument, WHOQOL-BREF) in a reserved room while they waited for their routine consultations in the outpatient clinic.

The project was approved by the Ethics in Research Committee (no. 672/2008), and all study subjects signed a consent form before being enrolled.

Sexual Function Assessment

The FSFI questionnaire,[16] which was validated for the Portuguese language and the Brazilian female population,[17] was used to evaluate sexual function. This tool has nineteen questions grouped into six domains that measure desire, arousal, lubrication, orgasm, satisfaction and pain or discomfort during sexual intercourse. Each aspect is scored on a scale from 0 to 6, with higher scores indicating better functioning in each domain. The total FSFI score is calculated adding the scores for each domain. The score for sexual dysfunction for this index is ≤ 26.5.[16]

Quality of Life Assessment

The instrument used to assess the QoL was the WHOQoL-BREF, which was developed by The WHOQoL Group (1998)[18] and validated in Brazil by Fleck et al in 2000.[19] The questionnaire has 26 questions, 2 of which are general, in which the woman describes her impression of her QoL and health, and the other 24 questions cover four domains: physical, psychological, social relationships and environment. The evaluation is performed by assigning for each question scores that are added and evaluated according to a scale from 0 to 100, in which 0 is the worst possible quality of life, and 100 is the best possible quality of life.[18]

Statistical Analysis

A convenience sample of women receiving care at our institution for 24 months was analyzed. The variables were tested for normality distribution using the Kolmogorov-Smirnov test. The results of the different domains of the QoL and sexuality questionnaires were compared between the POI and control groups using the Student t-test, and when the data did not show any parametric distribution, the Mann-Whitney test was used. The Spearman correlation was used to evaluate the correlation coefficient of each SF domain on different aspects of QoL. Considering the convenience sample, the test power was calculated. Data were considered significant when p < 0.05. All statistical analyzes were performed using the Statistical Analysis System (SAS, SAS Institute, Cary, NC, US) software, version 9.2 for Windows.

Results

The mean age ± standard deviation (SD) of the women in the POI group (n = 80) and in the control group (n = 80) was 38.4 ± 7.3 and 38.1 ± 7.3 years respectively (p = 0.72). In the POI group, the women were 30.2 ± 7.0 years old when they had their last menstrual period. The time since the onset of gonadal insufficiency was of 8.2 ± 5.8 years.

In the evaluation of the WHOQoL-BREF, there was a worsening in the assessment of the physical (63.4 ± 17.4 and 72.7 ± 15.2 respectively, p = 0.0004) and psychological (63.2 ± 14.6 and 69.3 ± 13.9 respectively, p = 0.0075) domains in the POI group when compared with the control group, although no differences were found between the groups in the self-perception of their QoL and health ([Table 1]).

Table 1 Comparison of the different domains of quality of life and sexual function in women with premature ovarian insufficiency (POI group) and women with normal gonadal function (control group)

	POI group (n = 80)			Control group (n = 80)
Measurement	Average	SD	Mean	Average	SD	Mean	p
Age	38.4	7.3	39.0	38.1	7.3	38.0	0.7279
Quality of life
Physical	63.4	17.4	62.5	72.7	15.2	75.0	0.0004
Psychological*	63.2	14.6	62.5	69.3	13.9	70.8	0.0075
Social	67.2	20.3	70.8	69.7	17.5	75.0	0.5713
Environment*	59.1	13.8	59.4	61.5	12.6	59.4	0.2466
QoL domain	72.5	17.2	75.0	75.0	13.8	75.0	0.3782
Health	59.7	25.9	75.0	65.9	19.6	75.0	0.2505
Sexual function
Desire	3.4	1.2	3.6	3.7	1.0	3.6	0.1411
Arousal	3.8	1.1	3.6	4.4	0.9	4.5	0.0006
Lubrication	4.1	1.3	4.1	5.0	1.1	5.4	<0.0001
Orgasm	3.9	1.4	4.0	4.6	1.2	5.2	0.0006
Satisfaction	4.5	1.2	4.8	5.0	1.1	5.2	0.0061
Pain	4.3	1.3	4.4	5.1	1.0	5.2	0.0004
Total score	24.0	5.7	23.6	27.7	4.6	28.9	<0.0001

Abbreviation: POI, premature ovarian insufficiency; SD, standard deviation/Mann-Whitney test.

Note: * Student t-test.

The POI group scored worse than the control group in the FSFI (24.0 ± 5.7 and 27.7 ± 4.6 respectively, p < 0.0001). For the domains of arousal, lubrication, orgasm and satisfaction, the POI group scores were also worse, and these women reported more pain during the sexual act than the controls ([Table 1]).

By comparing the results of the POI group in the FSFI and WHOQoL-BREF questionnaires, we noted that orgasm and, in particular, sexual satisfaction were SF domains that were correlated with all QoL domains in women with POI. The physical domains of the SF, such as pain and lubrication, were less frequently correlated with QoL. Moreover, we noted that the total FSFI score, which assesses sexual function in general, was positively correlated to the self-perception of QoL in women with POI (R = 0.26, p = 0.021) ([Table 2]).

Table 2 Correlation between quality of life and sexual function in women with premature ovarian insufficiency (n = 80)

SF QoL	Desire		Arousal		Lubrification		Orgasm		Sexual satisfaction		Pain		Total FSFI
	R	p	R	p	R	p	R	p	R	p	R	p	R	p
Physical	0.09	0.427	0.21	0.066	0.13	0.247	0.26	0.022	0.30	0.006	0.15	0.191	0.26	0.022
Psychological	0.08	0.472	0.25	0.026	0.17	0.141	0.29	0.008	0.30	0.006	0.13	0.235	0.27	0.015
Social	0.35	0.002	0.48	<0.0001	0.31	0.005	0.41	0.0001	0.63	<0.0001	0.45	<0.0001	0.37	<0.0001
Environment	0.21	0.055	0.31	0.004	0.27	0.017	0.33	0.002	0.45	<0.0001	0.09	0.402	0.37	0.0008
QoL domain	0.04	0.740	0.21	0.055	0.19	0.095	0.36	0.001	0.34	0.002	0.03	0.801	0.26	0.021
Health	0.02	0.828	0.21	0.061	0.05	0.644	0.34	0.002	0.26	0.019	0.07	0.552	0.21	0.053

Abbreviations: FSFI, Female Sexual Function Index; QoL, quality of life; R, Spearman correlation coefficient; SF, sexual function.

On the other hand, social relationships was the domain that suffered the most influence of all aspects of sexual function in the POI group. Arousal, orgasm, satisfaction and pain were the items that presented the highest coefficient of determination with the women's social relationships, so the more affected they were, the worse their social interactions (R = 0.48, p < 0.0001; R = 0.41, p < 0.0001; R = 0.63, p < 0.0001; and R= 0.45, p < 0.0001 respectively) ([Table 2]).

Discussion

The present study, which evaluated the association between SF and QoL among women with POI but without chronic diseases, showed that the worsening of any domain of sexuality can negatively impact the way these women interact socially. The psychological domains of SF (arousal, orgasm, and especially sexual satisfaction) had greater influence than the physical domains (pain and lubrication) on the QoL parameters.

Quality of life reviews have been the subject of interest in different areas, and often serve as guidelines for health managers. Biopsychosocial domains are interrelated in this context.[20] Our results call attention to the fact that the known sexuality impairment in women with POI worsens their QoL, notwithstanding the presence of other chronic diseases. This impact had not been studied previously in women with POI but without chronic diseases, and the present study highlights the complex interaction between these contexts.

In terms of other chronic diseases, this interaction has been described in young women with POI due to a hematological cancer treatment, for example, for whom a worse QoL lead to a worsening of their sexual life.[21] Absolom et al,[21] studying women with POI due to cancer treatment, showed that the physical and mental health of these women was significantly impaired compared with young women without the same diagnosis. These authors pointed out that the negative symptoms of hypoestrogenism, such as hot flashes, night sweats and vaginal dryness, lead to a worsening in QoL and sexual activity.[22]

We evaluated women with POI undergoing estro-progestative hormone therapy and without chronic diseases, and we still found the same impairment and interaction. These data seem to indicate that the loss of gonadal function has a direct influence on SF and QoL, despite the treatment of the hypoestrogenism and the other chronic diseases.

In the present study, we observed that the overall assessment of SF (total FSFI score) had a weak but significant correlation with the physical and psychological domains of QoL in the POI group. Other authors who evaluated women with chronic illnesses (without gonadal failure) also showed that the physical domain of QoL and overall SF were positively correlated.[23] [24]

The questionnaires that assess overall SF are made up of physical domains (pain and lubrication) and psychological domains (desire, arousal, orgasm and satisfaction). In a separate analysis of the physical aspects of sexuality, these domains were observed to have a low impact on quality of life. The psychological domains of SF (in particular satisfaction), on the other hand, influence almost all of the QoL domains. Sexual satisfaction was the aspect with the greatest positive impact on the context of social interaction, and it was measured by questions that assess the relationship with friends, relatives, and the degree of satisfaction of the women with themselves. In addition to these particular features, one can observe that the better the overall sexual performance (total FSFI score), the better the evaluation of the social interactions of these women.

According to the literature, women with POI have a worse assessment of their self-image, worse self-confidence, report feeling less feminine and older, and feeling different from other women of the same age.[25] These issues appear to be linked to a psychological context: the diagnosis of POI affects the sexuality and the interactions of these women with their peers. Our results are in agreement with those of the literature: there is a direct correlation between the psychological and social evaluations of women with POI and the FSFI.

To the best of our knowledge, this is the first study to evaluate the influence of sexuality on the QoL of women with POI but without other diseases.

It is necessary to highlight the influence of changes of sexuality on the social context, since sexuality is a result of interactive behaviors and attitudes between individuals; of strategies to attract and keep a partner, forming a couple, ultimately, for the reproduction and survival of the species. As sexuality is expressed through means learned through socialization and its purpose is related to the survival of the species, a strong interaction between sexuality and society is expected. Thus, the social context is essential when considering potentially sexual behavior.

Sexuality involves affectivity, the ability to compromise, the ability to form and maintain relationships, and procreation. The definitive and early loss of the ability to procreate very likely alters the expression of sexuality, with a negative impact on interpersonal relationships and social interactions in general.

We believe that the results of the present study should alert healthcare professionals regarding specific practices needed for women with POI, making them adapt better this condition, in order to improve their social relationships and make them understand their role in society.

Conclusion

In conclusion, the psychological aspects (desire, excitement, orgasm and sexual satisfaction) of the SF had a great influence on the parameters of the QoL, while the physical aspects (pain and lubrication) had a low impact on the QoL. Sexual function and QoL in women with POI are directly related, especially regarding the social domain. A worse sexual function is related to the deterioration of social interactions. These results should be considered during the medical and psychological cares offered.

Conflicts of Interest

The authors have no conflicts of interest to declare.

Contributions

Yela DA, Soares PM and Benetti-Pinto CL contributed with the project and interpretation of data, writing of the article, critical review of the intellectual content, and final approval of the version to be published.

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