Skip to main content

Table 2 Patient characteristics of 581 patients included in cluster analysis a

From: OMERACT-based fibromyalgia symptom subgroups: an exploratory cluster analysis

Characteristics

Mean (SD) orn(%)

Median (range)

Age, yr

55.1 (12.4)

55.6 (20.1 to 90.2)

Race

  

White

531 (91.4)

 

Other

10 (1.7)

 

Missing data

40 (6.9)

 

Education

  

Less than high school

13 (2.2)

 

High school graduate or GED

122 (21.0)

 

Some college or 2-year degree

225 (38.7)

 

4-year college graduate

92 (15.8)

 

Postgraduate studies

86 (14.8)

 

Missing data

43 (7.4)

 

Employment status

  

Employed

206 (35.4)

 

Retired

124 (21.3)

 

Work-disabled

109 (18.8)

 

Other (student, full-time homemaker, other)

69 (11.9)

 

Unemployed

51 (8.8)

 

Missing data

22 (3.8)

 

Marital status

  

Married/committed relationship

435 (74.9)

 

Divorced/separated

55 (9.4)

 

Single

44 (7.6)

 

Widowed

25 (4.3)

 

Missing data

22 (3.8)

 

BMI, kg/m2

30.1 (7.6)

29.2 (12.6 to 59.2)

FM research survey

  

WPI

12.6 (3.8)

13 (3 to 19)

SS

8.9 (2.0)

9 (5 to 12)

BPI

  

Pain severity

5.1 (1.8)

5.3 (0.3 to 10)

Pain interference

5.7 (2.3)

5.9 (0 to 16.3)

MOS-Sleep Problems Index II

55.1 (18.9)

56.7 (8.9 to 97.8)

POMS

  

Depression-Dejection

6.8 (5.1)

6 (0 to 20)

Tension-Anxiety

7.2 (4.8)

7 (0 to 20)

MFI-20

  

General

17.3 (2.6)

18 (7 to 20)

Physical

15.8 (3.6)

17 (4 to 20)

Reduced activity

14.6 (3.9)

15 (4 to 20)

Reduced motivation

12.4 (3.8)

12 (4 to 20)

Mental

13.2 (4.2)

13 (4 to 20)

Total

73.3 (14.0)

74 (29 to 100)

MASQ

95.4 (22.0)

94 (49 to 162)

FIQ-R total

56.0 (18.7)

57.5 (5 to 96.2)

Stiffness

7.2 (2.2)

8 (0 to 10)

SF-36

  

Physical

30.3 (8.6)

29.8 (8.3 to 52.9)

Mental

40.2 (12.6)

40.5 (7.5 to 66.8)

  1. aBMI, Body mass index; BPI, Brief Pain Inventory; FIQ-R, Revised Fibromyalgia Impact Questionnaire; FM, Fibromyalgia; GED, General educational development; MASQ, Multiple Ability Self-Report Questionnaire ; MFI, Multidimensional Fatigue Inventory; MOS-Sleep, Medical Outcomes Study Sleep Scale; POMS, Profile of Mood States; SF-36, Medical Outcomes Study 36-item Short Form survey; SS, Symptom severity; WPI, Widespread pain index.