Table 1 Descriptive statistics for patiens who answered questions about headache frequency and were referred for sleep study due to a clinical suspicion of obstructive sleep apnea (N = 477) or other sleep disorder (N = 292)
From: Prevalence and predictors of headache in patients referred to polysomnography
Obstructive sleep apnea | Other sleep study | ||||
|---|---|---|---|---|---|
Normal | Mild | Moderate | Severe | Unknown | |
AHI | <5 | 5-14 | 15-29 | ≥30 | |
n | 225 | 124 | 67 | 61 | 292 |
Age, years [mean (SD)] | |||||
Male | 42.9 (12.2) | 49.1 (11.2) | 52.0 (10.1) | 51.1 (11.0) | 40.7 (12.7) |
Female | 43.2 (12.6) | 51.1 (10.7) | 56.0 (8.4) | 50.9 (7.9) | 41.2 (12.4) |
Body mass index, kg/m2, mean (SD) (n = 761) | 27.3 (5.0) | 28.4 (4.6) | 29.9 (4.6) | 32.7 (5.7) | 25.8 (5.2) |
Male gender (n = 472) | 56 (126) | 70 (87) | 84 (56) | 92 (56) | 50 (147) |
Education (n = 760) | |||||
Schooling up to 10 years | 39 (87) | 46 (57) | 46 (30) | 53 (31) | 42 (123) |
High school degree | 17 (37) | 15 (19) | 11 (7) | 15 (9) | 20 (59) |
University or college education | 44 (97) | 39 (48) | 44 (29) | 32 (19) | 37 (108) |
Employment (n = 757) | |||||
Student | 5 (11) | 2 (2) | 0 (0) | 2 (1) | 4 (32) |
Homemaker | 3 (6) | 1 (1) | 2 (1) | 0 (0) | 3 (8) |
Retired/sick leave/disablement benefits | 26 (57) | 33 (41) | 28 (18) | 31 (18) | 34 (97) |
Unemployed | 1 (2) | 3 (4) | 3 (2) | 0 (0) | 5 (13) |
Employed part time | 12 (26) | 12 (15) | 12 (8) | 3 (2) | 10 (30) |
Employed full time | 53 (117) | 49 (61) | 55 (36) | 64 (38) | 43 (124) |
Current smoker (n = 253) | 34 (76) | 30 (37) | 25 (17) | 37 (22) | 35 (101) |
Epworth Sleepiness Scale >10 (n = 378) | 51 (114) | 47 (58) | 48 (32) | 59 (36) | 47 (138) |