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Table 2 Study Characteristics

From: Does GP training in depression care affect patient outcome? - A systematic review and meta-analysis

Study

Country

Recruitment, Inclusion Criteria

Randomization

Na

Intervention, Role of GP Training

Control Group

Comparison

Quality

Baker (2001) [36]

GB

Consecutive patients; ≥ 18 yrs

Patients seeking consultation for new-onset depression

Practices

402

Tailored intervention to promote guideline implementation (additional feedback, educational visits, group discussions)

Additional to guideline

UCb

Patients of experimental group vs. control group

30

Bosmans (2006) [33]

NL

Consecutive patients; ≥ 55 yrs

PRIME-MD = MD

Practices

145

4 hrs training session on screening, diagnosis and treatment as in Dutch guidelines

UC

Patients of experimental group vs. control group

39

Gask (2004) [38]

GB

GP referral;

16-65 yrs

Intention or current treatment of depression (symptoms < 6 mo)

HAM-D ≥ 13

Practice

189

Acquisition of clinical skills, 5 lectures à 2 hrs on assessment and treatment;

Sole intervention

WL

Patients of experimental group vs. control group

36

Kendrick (2001) [34]

Thompson (2000) [35]

GB

Consecutive patients;

≥ 16 yrs

HADS-D ≥ 8

Practice

733

Guideline implementation & GP training (4 h seminars, educators available for 9 more mo);

Additional to guideline

WL

Patients of experimental group vs. control group

Sensitivity of recognition rates of experimental group vs. control group

36

King (2002) [41]

GB

Consecutive patients;

≥ 18 yrs

HADS-D/A ≥ 11

Practice

272

Training of GPs in brief cognitive behaviour therapy (4 half day workshops);

Sole intervention

WL

Patients of experimental group vs. control group

34

Llewellyn-Jones (1999)

[40]

AUS

Residential facility;

≥ 65 yrs

GDS ≥ 10

MMSE ≥ 18

Patient

220

Shared Care Intervention, including GP training & education, health education and promotion, psychoeducation;

Central part of complex intervention

WLc

Experimental group vs. control group

33

Rost (2001) [44]

Pyne (2003) [43]

Rost (2005) [45]

USA

GP referral;

DSM III-R MD (latter two studies exclude patients currently in treatment)

Practice

479

QuEST intervention, 4 academic telephone calls to implement guidelines, nurse w/8-hour face-to-face training;

Guidelines implementation

UC

Patients of experimental group vs. control groupd

38

Worrall (1999) [39]

CAN

GP referral;

GP diagnosis and severity rating, later CES-D ≥ 16

Practice

147

3-hour sessions on guideline implementation + possible consultation of psychiatrist;

Guidelines implementation

UCb

Patients of experimental group vs. control group

26

  1. a At baseline;b Receipt of guidelines by mail;c Assessment of control group during first period of study, followed by intervention and assessment of experimental group;d Rost et al. (2001): comparison recently treated patients vs. patients beginning new treatment episode, analysis for both intervention groups.
  2. Abbreviations: CES-D - Center for Epidemiologic Studies Depression Scale; CIDI - Composite International Diagnostic Interview; GDS - Geriatric Depression Scale; GP - General Practitioner; HADS-D/A - Hospital Anxiety and Depression Scale; HAM-D - Hamilton Depression Scale; MD - Major Depression; MMSE - Mini Mental Status Examination; mo - month(s); PRIME-MD - Primary care Evaluation of Mental Disorders; QI - Quality Improvement; UC - Usual Care; w/- with; WL - Waiting List; yrs - years.