Table 3 Quality assessment of the included case-control studies
From: Dairy product consumption and risk of hip fracture: a systematic review and meta-analysis
Newcastle-Ottawa Scale for assessing the quality of case control studies in meta-analysis | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Selection | Comparability | Outcome | |||||||||
Study | Is the case definition adequate | Representativeness of the cases | Selection of controls | Definition of controls | Comparability of cases and controls on the basis of the design or analysis | Ascertainment of exposure | Same method of ascertainment for cases and controls | Non-Response rate | Quality score | ||
1 | Jha | 2010 | ★ | ★★ | ★ | ★ | 5 | ||||
2 | Lan | 2010 | ★ | ★★ | ★ | 4 | |||||
3 | Jitapunkul | 2001 | ★ | ★ | ★★ | ★ | 5 | ||||
4 | Kanis | 1999 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
5 | Johnell | 1995 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
6 | Tavani | 1995 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |
7 | Cumming | 1994 | ★ | ★ | ★ | ★ | ★★ | ★ | ★ | 8 | |
8 | Nieves | 1992 | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | |