| Exposed and nonexposed individuals | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reference | Exposed group representative of average in community | Exposure ascertained through structured records or structured interviews | Nonexposed group selected randomly or consecutively from population | Outcome not present at study start | Matched | Matched by second factor | Adjusted by 1 factor when no matching | Adjusted by >1 factor when no matching | Outcome ascertained by independent or blind assessment | Outcome conformation via secure record (chart/file) | Follow-up time long enough for outcome to occur | Lost to follow-up <20% |
| Aglan et al,29 2008 | Yes | Yes | Yes | |||||||||
| Brezo et al,30 2008 | Yes | Yes | Yes | |||||||||
| Brown et al,31 1999 | Yes | Yes | Yes | Yes | ||||||||
| Buist & Janson,33 2001 | Yes | Yes | Yes | Yes | ||||||||
| Chowdhary & Patel,36 2008 | Yes | Yes | Yes | Yes | Yes | Yes | ||||||
| Dinwiddie et al,39 2000 | Yes | Yes | Yes | Yes | ||||||||
| Ernst et al,401993 | Yes | Yes | Yes | |||||||||
| Fergusson et al,42 2000 | Yes | Yes | Yes | Yes | ||||||||
| Fergusson et al,43 2002 | Yes | Yes | Yes | Yes | Yes | |||||||
| Fergusson et al,41 2008 | Yes | Yes | Yes | Yes | ||||||||
| Florentine et al,451999 | Yes | Yes | Yes | |||||||||
| Frank & Anderson,46 1987 | Yes | Yes | Yes | Yes | Yes | |||||||
| Gutner et al,48 2006 | Yes | Yes | Yes | Yes | Yes | |||||||
| Harvey et al,491994 | Yes | Yes | Yes | |||||||||
| Kolko et al,50 2003 | Yes | Yes | Yes | Yes | ||||||||
| Pearce et al,35 2008 | Yes | Yes | Yes | |||||||||
| Plunkett et al,52 2001 | Yes | Yes | Yes | Yes | Yes | |||||||
| Rimsza et al,541988 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||||
| Spataro et al,56 2004 | Yes | Yes | Yes | Yes | Yes | |||||||
| Widom,631999 | Yes | Yes | Yes | Yes | Yes | |||||||