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Table 7 Tabulation of positive predictive value (PPV) of referral, not corrected for clusteringa, b

From: The effect of referral templates on out-patient quality of care in a hospital setting: a cluster randomized controlled trial

 

Intervention

Control

Histological diagnosisc

 - Yes

86 (37.2)

67 (35.6)

 - No

137 (59.3)

112 (59.6)

 - Missing

8 (3.5)

9 (4.8)

Diagnostic clarification

 - Yes

220 (78.3)

164 (74.9)

 - No

51 (18.2)

46 (21.0)

 - Missing

10 (3.5)

9 (4.1)

Change in medical management

 - Yes

154 (54.8)

105 (48.0)

 - No

117 (41.6)

105 (48.0)

 - Missing

10 (3.6)

9 (4.1)

PPV total

 - Yes

243 (86.5)

183 (83.6)

 - No

28 (10.0)

27 (12.3)

 - Missing

10 (3.5)

9 (4.1)

  1. aNumbers are presented as positive outcomes in absolute numbers and percentages
  2. bNo significant differences seen between intervention and control groups
  3. cOnly for the clinical areas of dyspepsia and suspected CRC (not relevant for COPD and chest pain), n = 419