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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Soc Sci Med. 2011 Feb 24;72(6):823–831. doi: 10.1016/j.socscimed.2011.01.015

Table 3.

Summary of Visit Duration and Participant Verbal Activity from Observational Studies

Duration of Visit k1 n2 Median (Range) Mean (SD) Pooled Effect Size, r (95%CI) Pooled Significance P-Value for Heterogeneity 5
Accompanied Accompanied

No Yes No Yes Unweighted Mean r 3 Weighted Mean r 3 Combined Z 3 P- Value 4
Length of Visit (Minutes) 6 6 883 20.2 (8.8, 49.1) 25.1 (11.7, 57.4) 24.6 (19.1) 29.8 (21.4) 0.13 (−0.01,0.27) 0.19 (0.05,0.32) 4.28 <0.01 0.21
Verbal Activity, by Participant (%) 6,7
Patient 3 307 45.9 (42.4,48.4) 29.1 (27.7,40.4) 45.5 (3.0) 32.4 (6.9) −0.14 (−0.24,−0.04) −0.16 (−0.26,−0.06) −2.45 <0.01 0.92
Patient and Companion 3 307 45.9 (42.4,48.4) 48.9 (48.7,57.6) 45.5 (3.0) 47.3 (5.0) 0.02 (−0.06,0.09) 0.02 (−0.06,0.10) 0.35 0.73 0.88
Physician 3 307 54.1 (51.6,57.6) 53.0 (48.7,58.3) 54.4 (3.0) 53.3 (4.8) −0.01 (−0.10,0.08) −0.02 (−0.11,0.07) −0.28 0.78 0.87
1

k=number of independent study samples.

2

n=total sample for all contributing studies.

3

Positive effect in regard to visit duration indicates accompanied visits longer; in regard to verbal activity positive effect r indicates that dialogue for patient, patient and companion, and physician represent a greater proportion of visit dialogue during accompanied relative to unaccompanied visits.

4

P-value of Combined Z for weighted estimate. P-values are two-tail.

5

p<0.10 is considered evidence of substantial heterogeneity.

6

Contributing studies: Beisecker, Greene, Ishikawa, Jansen, Labreque, Street (visit duration); Ishikawa, Street, Shields (verbal activity).

7

Reflect average proportion of per-visit utterances (Ishikawa and Street) and mean words spoken (Shields).