Table 1 Description of four articles reporting on five studies on puberty and back pain
From: Is puberty a risk factor for back pain in the young? a systematic critical literature review
Reference number | [33] | [33] | [35] | [34] | [32] |
|---|---|---|---|---|---|
1st author | Jansens | Jansens | Wedderkopp | LeResche | Hulsegge |
Year | 2011 | 2011 | 2005 | 2005 | 2011 |
Country | Netherland | USA | Denmark | USA | Netherland |
Design | Longitudinal | Longitudinal | Cross-sectional | Cross-sectional | Cross-sectional |
Sample size | BL: 2935 | BL: 4079 | 419 | 3101 | 2698 |
FU: 1816 | FU: 1817 | ||||
Response rate | BL:76% | BL: 49% | 51% | 49% | 66% |
1st FU: 73% | FU: 45% | ||||
2nd FU: 62% | Â | ||||
Age | BL: 11.1 | BL: 11 | 8-10 and 14-16 | 11-17 | 11 |
FU: 15.1 | FU: 14 | ||||
Sex distribution (% of girls) | 51 | 51 | 100 | 50 | 49 |
Description of puberty | 4 stages | 4 stages | 5 stages | 4 stages | 4 stages |
Data collection for puberty | Questionnaire PDS | Telephone itw PDS | Physical examination Tanner stages | Telephone itw PDS | Questionnaire PDS |
Description of back pain | BP = frequency | BP = frequency | BP = areas (LBP/MBP/NP) | BP = duration (>one day or more) | BP = duration (>1-month) |
Data collection for back pain | Questionnaire | Telephone itw | Semi-structured itw | Telephone itw | Questionnaire |
Recall period for back | 3-months | 3-months | 1-month | 3-months | 12-months |
Other extrinsic factors than age and sex | Pubertal status at BL | Pubertal status at BL | Overweight Smoke | Previous pain Depression | Not in the analysis for back pain |
BP at BL | BP at BL | ||||
Dose-response analysis possible | Prevalence estimate AND frequency of symptoms in relation to puberty stages | Prevalence estimate AND frequency of symptoms in relation to puberty stages | Prevalence estimate in relation to puberty stages | Prevalence estimate in relation to puberty stages | Prevalence estimate in relation to puberty stages |