Sick and Tired: Understanding and Managing Sleep Difficulties in ...

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Data Analysis The same procedures for data entry, screening and scoring were utilised as described in the study outlined in Chapter Four. The questionnaire data were analysed using t-tests (if the data met parametric assumptions), chi-square tests for nominal data or Mann Whitney U tests, (if the data did not meet parametric assumptions), to explore if there were differences between patients with FMS and healthy controls. Correlation analysis was used to explore the associations between perceived stress, dysfunctional beliefs about sleep, sleep quality, pain and fatigue. Conditional logistic regression was used to explore if these psychological factors were significant risk factors for FMS. Results Of the 300 questionnaires that were distributed, 112 (74.67%) were returned by participants diagnosed with FMS and 92 (61.33%) were received from healthy controls. On receipt, the questionnaires were screened to ensure that the participants met the inclusion criteria. The screening process resulted in four participants being excluded, of these, three participants were excluded as more than 20% of the questionnaire data was missing and one FMS participant was omitted as they had not been diagnosed by a GP or consultant, as stated in the inclusion criteria. Frequency matching was used to „match‟ cases with controls (Sturmer & Brenner, 2001). The age and gender of the recruited cases were identified and listed and controls continued to be recruited until matches were found for over 80 cases (based on the sample size calculation that only 64 cases and controls were needed). The remaining questionnaires (those unmatched) were excluded to form two equally matched participant groups (N=83 FMS participants and N= 83 age and sex matched healthy controls), with N=7 males (8.4%) in each group and N=42 (50.6%)
As previously described on page 61, the questionnaire data was scored according to the individual questionnaire instructions and the resulting variables were checked for skewness and kurtosis. Transformation of skewed variables aims to normalise the distribution of the data in order to meet the assumptions of parametric statistics (Norris & Aroian, 2004). There are several different approaches for transforming data, dependent on the degree and direction of the skew. Due to the need to use different transformation approaches for different distributions of data, this can cause difficulties in applying transformations, as all items on a given scale need to be transformed using the same approach to enable the comparison of like with like, and one approach may not be suitable for all items within a scale. Consequently, transformation of skewed data is not always recommended (Norris & Aroian, 2004). As the data were considered to be ordinal in this thesis (as discussed in Chapter Four) non-parametric statistics were used to analyse the data in this study. Non-parametric tests do not require data to be normally distributed and therefore the skewness of the study variables were not corrected. To account for multiple comparisons, findings were only considered to be significant at the p
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Sick and Tired: Understanding and M
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Chapter Four. The Nature and Effect
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References ........................
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List of Tables Table 1. Participant
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Co-authored Works Although the stud
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Acknowledgments This thesis would n
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Intellectual Property Rights There
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Confidential Material No participan
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The role of sleep in FMS appears to
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little information was available as
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Psychophysiologic insomnia which is
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and are less able to inhibit the pa
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widely applied in clinical practice
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of fewer tender points; usually bet
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Current Management Strategies The t
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also likely to depend on a number o
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deep sleep (stages three and four)
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Although sleep moves through the sl
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Figure 3. The Integrative Model of
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However, conducting a blood test is
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As sleep is a complex process invol
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Sleep Diaries Sleep diaries are a k
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pain). Lentz et al (1999) revealed
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These results have also been suppor
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(McCracken & Iverson, 2002) which s
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Figure 4. Conceptual model of the d
Page 53 and 54: Clinical Implications Despite the p
Page 55 and 56: Chapter Three. Sleep in FMS As high
Page 57 and 58: & Penzien, 2003), although alpha wa
Page 59 and 60: pauses in breathing indicative of s
Page 61 and 62: Relationships between Sleep and Pai
Page 63 and 64: Managing Sleep Disturbance in FMS D
Page 65 and 66: may be possible to help patients im
Page 67 and 68: person to initiate an action (such
Page 69 and 70: and Nicassio et al (1995) only expl
Page 71 and 72: 1) Poor sleep quality, defined by t
Page 73 and 74: elow 0.7 are acceptable. Therefore
Page 75 and 76: heart disease (Epstein et al., 1999
Page 77 and 78: In order to explore the links betwe
Page 79 and 80: questionnaire 78 (77.2%) of the par
Page 81 and 82: efficiency, suggesting that partici
Page 83 and 84: Older age and longer length of illn
Page 85 and 86: Table 2. Correlations between demog
Page 87 and 88: Logistic Regression As 97% of the s
Page 89 and 90: in bed, participants may have devel
Page 91 and 92: Relationship between Negative Affec
Page 93 and 94: participants, who may be less likel
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Page 97 and 98: eactions are most likely to be detr
Page 99 and 100: It has been suggested that the auto
Page 101 and 102: For both groups, participants were
Page 103: with and without chronic medical co
Page 107 and 108: Figure 7. Scree plot for the explor
Page 109 and 110: Figure 8. Scree plot for the explor
Page 111 and 112: Table 6. Participant characteristic
Page 113 and 114: Table 7. Measures of central tenden
Page 115 and 116: CON = DBAS-10 Dysfunctional beliefs
Page 117 and 118: The Exp (B) values revealed that hi
Page 119 and 120: has explored the use of napping on
Page 121 and 122: It became clear, through the analys
Page 123 and 124: interventions. With this in mind, t
Page 125 and 126: The philosophy of phenomenology was
Page 127 and 128: Methods Participants were given a w
Page 129 and 130: Table 11. Interview schedule for th
Page 131 and 132: Rigour The interview transcripts we
Page 133 and 134: “The main symptom is this overwhe
Page 135 and 136: Theme Two. Inter-relationship betwe
Page 137 and 138: where I live, so I don‟t know, I
Page 139 and 140: Participants also described how the
Page 141 and 142: “XXXX (name of person) planned a
Page 143 and 144: A strong theme that emerged in this
Page 145 and 146: conducted at several time points, w
Page 147 and 148: Chapter Seven. Investigating the Ef
Page 149 and 150: activities because they no longer f
Page 151 and 152: Therefore as this was a feasibility
Page 153 and 154: Self-reported sleep quality was ass
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The progressive muscle relaxation (
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Exploring the baseline data, there
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Consequently, univariate analysis w
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There was no significant correlatio
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people with FMS (Perlis, Giles, Men
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The aim of this study was to explor
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observed in perceived overall sleep
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elaborated on in Chapter Six, which
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Four) revealed that global sleep qu
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Modifications to the Call-Schmidt a
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MBSR programme in people with FMS (
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diagnostic criteria for these sleep
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comprehensive measures to look at t
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References Abad, V. C., Sarinas, P.
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Brand, S., Gerber, M., Beck, J., Ha
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Crofford, L. J., & Demitrack, M. A.
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Goldenberg, D. L., Kaplan, K. H., N
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Johns, M. W. (2002). Sleep propensi
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Leung, Y. Y., Ho, K. W., Zhu, T. Y.
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Mease, P. J. (2005). Fibromyalgia s
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symptoms in healthy subjects; Corre
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approach with illustration to the h
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Thomas, E. N., & Blotman, F. (2010)
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Yunus, M. B., Masi, A. T., & Aldag,
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Appendices Appendix A: Search Strat
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Sleep and Fibromyalgia Syndrome Con
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190
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The following questions relate to y
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There are lots of ways to try to de
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42. I try hard to prevent other thi
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During the past month have you had
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Appendix E: Published paper of Stud
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Sleep and Fibromyalgia Syndrome Con
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Appendix H: Participant Questionnai
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Below are 10 statements reflecting
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The questions in this scale ask you
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Appendix I. Published Paper for Stu
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Appendix K. Information Sheet and C
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Sleep in Fibromyalgia Syndrome Cons
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Appendix L: Letter of Ethical Appro
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Appendix M. Letter to GPs for Study
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What are the side effects of any tr
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Appendix O: Poster Advertising Stud
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Appendix Q: Participant Questionnai
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HAD Scale Read each item and place
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During the past month have you had
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Appendix R. Letter from Dr Mark Cro
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PUBLICATIONS Peer Reviewed Journal
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and panic-like episodes, Faculty of
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