OBJECTIVES (1) to ascertain how many people with neurological disability experience sexual or relationship problems; (2) to examine the interplay of neurological disability and sexual function within the context of the dyadic relationship; (3) to consider the implications of the results for service provision.
METHODS A survey of outpatients attending Hunters Moor Regional Rehabilitation Centre, Newcastle upon Tyne over a 6 month period. Standardised measures of sexual function and concern, relationship satisfaction, disability, and mental health were used.
RESULTS Seventy people were interviewed (18% of the potential study population). Prevalence figures therefore refer to this self selected sample. Fifty one per cent had experienced a change in sexual function and 27% were concerned about this change. Of those in cohabiting relationships 25% were experiencing difficulties. Gender was significantly associated with concern about sexual function, men being more concerned. A high score on the marital adjustment scale indicating relationship dissatisfaction was the best predictor of change in and concern about sexual function. Change in sexual function and duration of illness were the most powerful predictors of relationship dissatisfaction.
CONCLUSION If concern is taken as an indication of a desire for help more than one in four of this sample required help for sexual dysfunction. Sexual and relationship functioning were very closely associated and dysfunction in either of these areas was the best predictor of dysfunction in the other area. The dyadic relationship is an important institution in the management of disability. Sexual dysfunction can be predictive of difficulties within a relationship. Any service designed to address sexual health should also address relationship issues.
- sexual dysfunction
- relationship satisfaction
- neurological disability
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Sexuality is one of the most complex aspects of human life. Sexual expression is dependent on functioning anatomical and physiological systems, which are influenced by cognitive and emotional processes. Other than in masturbation and fantasy, sexual expression occurs within the context of a dyadic relationship. To assess and treat problems in this area knowledge of those factors influencing both the dynamics of the relationship and the physical and psychological aspects of sexual functioning is necessary.
Neurological disease and trauma have long been recognised as causing sexual dysfunction. Detailed studies of sexual functioning among various diagnostic groups with neurological disability have disclosed a high prevalence of sexual dysfunction.1-12 For example, in multiple sclerosis over two thirds of men may have an unsatisfactory or inactive sex life, after traumatic brain injury 50% of men may experience sexual dysfunction, and in Parkinson’s disease 50% of men and women may have sexual problems.13-15 However, the incidence of problems presented in routine consultations remains low. Szasz et al in a study of people with multiple sclerosis distinguished clearly between the presence of dysfunction and concern about the change.16 Although this research identified about half the study group as sexually less active or abstinent only 27% of the total group were concerned about the change. It was proposed that the concerned group represented those who would wish for treatment.
The intensely personal and private nature of sex produces a reticence on the part of patients in presenting sexual problems and in screening for such problems on the part of healthcare professionals.17-20 The associated lack of training in sexual medicine has not helped in developing services for this group of patients.21 22
This study examined sexual dysfunction within the context of the dyadic relationship and assessed the following issues.
The prevalence of sexual or relationship problems among a population with neurological disability
The interplay of neurological disability and sexual function within the context of the dyadic relationship
The implications for service provision of sexual dysfunction of whatever cause or character in terms of the concern which participants in the study experienced in relation to their sex lives.
Over a 6 month period all patients aged 16 to 64 years attending Hunters Moor Regional Rehabilitation Centre (RRC) as outpatients were invited by letter to take part in the study. Hunters Moor RRC, based in Newcastle upon Tyne, offers rehabilitation to patients in the 16 to 64 age group who have experienced neurological disease or trauma.
The project was conducted in two phases. Phase 1 (reported in this paper) was an interview based survey with neurologically disabled subjects. Interviews were conducted by a research psychologist (SB) at the RRC unless the subject had indicated a wish to be interviewed at home. Phase 2 encompassed in depth focused interviews with a few subjects and their partners The interviews were recorded, transcribed, and coded for analysis (reported separately).
Having gathered general demographic information, specific measures were used.
MODIFIED MINI MENTAL STATE EXAMINATION
The modified mini mental state examination was used as a brief screen for severe impairment of cognitive functioning which would preclude a person from understanding the study questions.23 Those scoring less than 3 were excluded from the study. Less severe cognitive problems were accepted as part of the range of neurological disability and were identified on the subscale of the OPCS disability screening questionnaire.
GENERAL HEALTH QUESTIONNAIRE 12 ITEM VERSION24
Psychological distress is well recognised as a contributory factor in sexual or relationship dissatisfaction.25-26 The GHQ 12 provided a brief well validated screening tool for detecting general psychiatric morbidity. A score of 2 or more distinguished between psychologically distressed and non-distressed cases
OPCS DISABILITY SCALE
The OPCS disability scale gave an overall disability score as well as subscale scores for specific areas of disability.27 It has been validated in population based studies and has more recently been used as an alternative to the Kurtzke scale in a study of people with multiple sclerosis.28
GOLOMBOK RUST INVENTORY OF MARITAL STATE
The Golombok Rust Inventory of marital state gave an overall score of relationship satisfaction.29 It was designed and validated for use among heterosexual people in cohabiting relationships.30 31 The questionnaire comprises 28 items covering shared interests, independence, communication, decision making, warmth and love, trust and respect, role expectation and goals, commitment, extent of agreement, and attitudes to relationships.
SEXUAL FUNCTION SCALE16
The sexual function scale was originally designed for use in a population with multiple sclerosis. It consists of five points indicating a change in sexual function or concern about that change. It provides a subjective assessment of sexual satisfaction, which is arguably the most meaningful measure of sexual expression. A sixth category was used in this study to incorporate those subjects who were not in a current sexual relationship and therefore were not aware of altered sexual functioning.
The total number of potential respondents was 398, of whom 44% were male and 56% were female, with a mean age of 46 years. Ninety two people agreed to take part in the study. Twenty two subjects were subsequently excluded; three because of cognitive problems and 19 who lived too far from the RRC to allow a home visit, which was their preference for the interview.
Seventy people were interviewed (18% of the potential study population), 31 were men and 39 were women, with a mean age of 47 (SD 10) years. This was not significantly different from the age and sex distribution of the study population. The diagnoses included multiple sclerosis (33%), focal dystonia (33%), stroke (14%), head injury (6%), and various other conditions including generalised dystonia and spinal injury (14%). Most of the sample was mild to moderately disabled with a mean score of 3.5 on the OPCS scale. Twenty subjects scored zero (no disability) and three scored 10 (very severely disabled). Forty two people scored two or more on the GHQ, implying psychiatric morbidity.
Sixty seven per cent (n=48) of the sample were married or cohabiting. Of those living alone 10% (n=7) had a stable relationship.
Of those in cohabiting relationships 30 subjects scored in the above average range of the GRIMS suggesting a high level of satisfaction with their relationship. Six had an average score. Seven scored in the range “poor” or “bad” and five had scores indicating severe relationship problems. In total 25% of those in a cohabiting relationship had problems of a sufficient magnitude to cause concern.
The influence of gender and diagnosis on relationship satisfaction was examined using a Mann-Whitney U test. There was no significant difference in relationship satisfaction between men and women (p=0.37). Examination of the two principal diagnostic groups showed that subjects with a diagnosis of multiple sclerosis or dystonia did not differ significantly in relationship satisfaction from other diagnostic groups (p=0.28 and 0.52 respectively).
A significant correlation between higher GRIMS scores (indicating poor relationship satisfaction) and increasing severity of disability was found (Spearman’s r=0.29, p<0.05). Duration of illness did not significantly influence relationship satisfaction (Spearman’sr test, p=0.29).
There was no significant difference in relationship satisfaction between those who were and were not psychologically distressed as measured by the GHQ (χ2 squared p=0.48).
Fifty one per cent (n=36) of the sample had experienced a change in sexual function, sexual activity, or had become abstemious. Of these people, over half (n=19) expressed concern about this change (table 1). Those who were concerned showed significantly less psychological distress (assessed by the GHQ) than those not concerned (Fisher’s exact test p=0.04). Change in sexual function alone did not correlate with psychological distress.
Gender was not significantly associated with change in sexual functioning but was associated with concern about sexual function (contingency coefficient=0.28, p<0.01), with men being more concerned than women.
The overall disability score was not significantly associated with either change in sexual activity or concern about that change, but there were associations between particular subgroups on the scale assessed by the Mann-Whitney U test.
Change in sexual functioning was significantly associated with difficulties in the areas of personal care (p<0.02), locomotion (p<0.02), and continence (p<0.01).
Concern about sexual function was associated with continence (p<0.01).
Abstinence from sexual activity was significantly associated with the overall severity of disability (p<0.01), and in particular with the subscale scores for personal care (p<0.02), locomotion (p<0.01), and intellectual function (p<0.01). Those with greater difficulties in these three areas were more likely to have become abstinent.
The influence of diagnosis on change in sexual function, concern, and abstinence was explored. A significant association between a diagnosis of multiple sclerosis, change in sexual function (contingency coefficient=0.30, p<0.01), and abstinence (contingency coefficient=0.36, p<0.01) was found but not between this diagnosis and concern.
SEXUAL AND RELATIONSHIP FUNCTION
Of the 48 people in cohabiting relationships 21 had not experienced a change in sexual function or activity and did not have any major relationship problems. Only one person experienced relationship difficulties in the absence of any sexual disturbance. The distribution of results for relationship and sexual functioning is shown in table 2.
Sexual function and relationship satisfaction were explored for association using a Mann-Whitney U test. Scores on the GRIMS scale of marital satisfaction were significantly associated with change in sexual function (p<0.01), concern about the change (p<0.01), and abstinence (p<0.01). People who were less satisfied with their relationship were more likely to have experienced altered sexual functioning and concern about this.
PREDICTING CHANGE IN AND CONCERN ABOUT SEXUAL FUNCTION
To assess which subjects were likely to experience change in and concern about sexual function, a series of logistic regression analyses were conducted.
The level of relationship satisfaction as measured by the GRIMS score was the greatest predictor of a change in and concern about sexual function and this accounted for 10% and 9% of the variance respectively. The greater the degree of distress between the partners, the greater the likelihood of a change in sexual function and concern about that change. Gender accounted for 6% of the variance in predicting concern about sexual function with men being more concerned than women. Relationship dysfunction was also the greatest predictor of sexual abstinence, accounting for 6% of the variance. The severity of disability accounted for 5% of the variance.
Overall a high GRIMS score (⩾34, indicating relationship problems) was the best predictor of sexual change, concern about that change, and abstinence.
PREDICTING RELATIONSHIP DISSATISFACTION
The predictors of relationship satisfaction were examined using a linear regression analysis. Change in sexual function and duration of illness were the most powerful predictors of relationship dissatisfaction, accounting for 21% and 7% of the variance respectively.
This study provides descriptive data about sexual and relationship functioning among a self selected sample with neurological disability. Due to the low response rate reliable prevalence data cannot be derived.
Sexual and relationship dysfunction are not life threatening consequences of neurological disease, but their occurrence may be associated with a considerable amount of unhappiness and poor quality of life.32-35 Of those subjects who were aware of a change in sexual functioning over half were concerned about the change. This represented 27% of the study sample and supports the results of Szasz et al.16 In addition, 25% of couples were experiencing relationship problems sufficient to warrant intervention. This offers an indication of the proportion of people who might wish to access services dealing with sexual and relationship issues in the context disability.
For relationship satisfaction the greatest predictive factor of dysfunction was change in sexual functioning with duration of illness also contributing. The cause of sexual dysfunction is often multifactorial in origin incorporating an interplay of psychosocial and physical factors.36 Assessment and treatment of those factors, which are accessible, should provide a better therapeutic outcome and this is certainly an area to be further researched. Offering an assessment by a couple’s therapist to those seeking help with sexual problems is a possible model and this has been successfully applied in a multidisciplinary diabetic clinic.37 There is evidence that combining marital therapy with psychosexual therapy results in a better outcome than either therapy alone.38
This study has demonstrated the close association between sexual and relationship dysfunction among people with neurological disability. Further research is needed to explore the most effective means of treating these common problems.
We are very grateful to Northern and Yorkshire Regional Health Authority for funding this study.