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Table 2 Comparison of trials included and pooled in 5 systematic reviews of depression screening

From: Analysis of decisions made in meta-analyses of depression screening and the risk of confirmation bias: A case study

Reference

N

Favors screening

Gilbody, 2001[10]

Gilbody, 2005[8]

Gilbody, 2008[9]

USPTF, 2002[12, 13]

USPTF, 2009[14, 15]

Search date

  

2000

2004

2007

2001

2007

   

Incl

Pool

Incl

Pool

Incl

Pool

Incl

Pool

Incl

Pool

Johnstone, 1976 [16]

1093

++

yes

no

no

no

yes

no

yes

no

yes

no

Moore, 1978 [17]

212

+

yes

yes

yes

yes

yes

yes

yes

no

yes

no

Linn, 1980 [18]

150

+

yes

no

yes

yes

yes

yes

yes

no

yes

no

Zung & Magill, 1983 [19]

143

++

no

no

yes

no

yes

no

no

no

yes

no

Zung & King, 1983 [20]

49

++

no

no

no

no

no

no

yes

yes

no

no

Hoeper, 1984 [21]

1452

-

yes

yes

yes

yes

yes

yes

no

no

no

no

German, 1987 [22]

488

+

yes

yes

yes

yes

yes

yes

no

no

no

no

Magruder-Habib, 1990 [23]

100

++

yes

yes

yes

yes

yes

yes

yes

no

yes

no

Callahan, 1994 [24]

175

 

no

no

yes

yes

yes

no

yes

yes

yes

no

Dowrick, 1995 [25]

179

-

yes

no

yes

yes

yes

yes

yes

no

yes

no

Callahan, 1996 [26]

222

-

no

no

no

no

yes

yes

yes

yes

yes

no

Lewis, 1996 [27]

681

+

yes

no

yes

yes

yes

yes

yes

yes

yes

no

Mazonson, 1996 [28]

573

++

yes

no

no

no

no

no

no

no

no

no

Reilfer, 1996 [29]

358

+

no

No

no

no

no

no

yes

no

no

no

Williams, 1999 [30]

969

+

no

no

yes

yes

yes

yes

yes

yes

yes

no

Katzelnick, 2000 [31]

407

++

no

no

no

no

no

no

yes

yes

yes

no

Weatherall, 2000 [32]

100

-

no

no

yes

yes

yes

yes

no

no

no

no

Wells, 2000 [33]

1356

++

no

no

no

no

no

no

yes

yes

yes

no

Whooley, 2000 [34]

331

-

no

no

yes

yes

yes

yes

yes

yes

yes

no

Rost, 2001 [35]

479

++

no

no

no

no

no

no

yes

no

yes

no

Schriger, 2001 [36]

218

-

no

no

no

no

yes

yes

no

no

no

no

Christensen, 2003 [37]

1785

+

no

no

no

no

yes

yes

no

no

no

no

Jarjoura, 2004 [38]

61

++

no

no

no

no

no

no

no

no

yes

no

Bergus, 2005 [39]

51

-

no

no

no

no

yes

yes

no

no

no

no

Bosmans, 2006 [40]

145

-

no

no

no

no

no

no

no

no

yes

no

Rubenstein, 2007 [41]

792

+

no

no

no

no

no

no

no

no

yes

no

  1. N = Total number in the trial at baseline (control and intervention arms).
  2. Incl = Included for any or all of three outcomes (recognition, management, outcome of depression).
  3. Pool = Pooled for any or all of three outcomes (recognition, management, outcome of depression).
  4. Cells shaded where study was not available for review with that search date.
  5. USPTF = US Preventive Task Force.