| Review | No of studies that included psychosocial factors (types of study: earliest and latest year of inclusion) | Data sources | Main outcome measures | Populations | Search languages |
| Bongers et al, 199333 | 30 (9 CO, 21 CS: 1973–92) | Medline, OSH-ROM, CISDOC, PsycINFO and manual searching | Back pain and back disorders | General and working populations | Not stated |
| Ferguson & Marras,199726 | 16 (2 CO and 14 CS) | Not indicated | Low back pain or discomfort or injury, or lost/restricted time | No restrictions indicated | English |
| Lagerstrom et al, 199831 | 17 (7 CO, 10 CS:1988–98) | Medline, NIOSHTIC, ARBLINE, Spiline | Low back problems | Nurses | Not stated |
| Davis & Heany, 200032 | 62 (14 CO, 1 CC, 47 CS: 1973–98) | Medline, PsycINFO, Institute for Scientific Information | Incident or prevalent low back pain | Not indicated | English |
| Hoogendoorn et al, 200029 | 13 (11 CO, 2 CC: 1949–97) | Medline, Embase, PsycLIT, NIOSHTIC, ISDOC, HSELINE | Symptoms or signs of non-specific back pain (and including consequences of back pain) | General and working populations | English, Dutch, German, French |
| Linton, 200127 | 11 (11 CO: 1967–2000) | Medline, PsycINFO, ARBLINE | Back pain, neck pain or musculoskeletal pain (but focusing mainly on back pain) | General and working populations | English |
| Hartvigsen, et al, 200428 | 40 (40 CO: 1990–2002) | Medline, PsycINFO, OSH-ROM | Low back pain and consequences | General and working populations | English |
CC, case–control; CO, cohort; CS, cross-sectional.