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Population prevalences (95% confidence intervals) for back pain in Bradford (rate per 100 people aged 25-64 in 1994)
| Lifetime (n=1107) | Annual (n=780) | Point (n=380) | |
|---|---|---|---|
| Men | 63 (60 to 66) | 42 (39 to 46) | 23 (20 to 25) |
| Women | 60 (57 to 63) | 44 (40 to 47) | 20 (17 to 23) |
| Age (years): | |||
| <35 | 54 (48 to 59) | 49 (34 to 44) | 16 (12 to 19) |
| 35-44 | 63 (59 to 67) | 44 (40 to 48) | 20 (16 to 23) |
| 45-54 | 63 (59 to 68) | 45 (41 to 50) | 22 (18 to 26) |
| ⩾55 | 65 (60 to 69) | 43 (39 to 48) | 26 (22 to 30) |
