Table 2

Prevalence of migraine, fibromyalgia, and depression, IBS and non-IBS cohorts, January 1996 through June 2002


IBS cohort (n = 97,593)
Non-IBS cohort (n = 27,402)



Cases
Prevalence per 1,000
Cases
Prevalence per 1,000
Pooled Prevalence Difference*
(95% CI)

Migraine
5,890
60
611
22
5
(3 – 7)
Fibromyalgia
12,563
129
1,297
47
28
(25 – 31)
Depression
12,533
128
1,644
60
16
(13 – 20)
Any of the above
25,783
264
3,226
118
46
(42 – 51)







Depression and Fibromyalgia
2,149
22
146
5
2
(1.5 – 3)
Migraine and Fibromyalgia
1,032
11
66
2
1
(-0.2 – 2)
Depression and Migraine
924
10
74
3
0
(-0.2 – 0.3)







Depression, Migraine, and Fibromyalgia
549
6
20
1
0
(-0.5 – 1)

*Prevalence difference adjusted for categories of sex and quintile of mean medical costs per person-month of health plan enrollment.

Cole et al. BMC Gastroenterology 2006 6:26   doi:10.1186/1471-230X-6-26