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Table 6 Total health service use costs (£) by time point, group and data collection method

From: An external pilot cluster randomised controlled trial of a theory-based intervention to improve appropriate polypharmacy in older people in primary care (PolyPrime)

 

Patient self-report

GP record

Service

Intervention (n = 22)

Control (n = 20)

Difference (95% CI)

Intervention (n = 22)

Control (n = 20)

Difference (95% CI)

Mean (95% CI)

Mean (95% CI)

Mean (95% CI)

Mean (95% CI)

6-month follow-up

Healthcare professional contact

121.77 (67.07, 176.48)

128.15 (80.18, 176.12)

−6.38 (−77.52, 64.77)

119.18 (87.30, 151.06)

141.30 (65.25, 217.35)

−22.12 (−99.24, 55.01)

Hospital contact

246.90 (−35.19, 529.01)

572.10 (−390.77, 1534.97)

−325.19 (−1256.21, 605.83)

396.32 (165.19, 627.44)

260.50 (45.49, 474.61)

136.27 (−171.23, 443.76)

Total

368.68 (71.86, 665.50)

700.25 (−269.04, 1669.54)

−331.57 (−1272.93, 609.79)

515.50 (287.10, 743.90)

401.35 (153.98, 648.72)

114.15 (−211.52, 439.82)

Total by collection method

526.57 (59.62, 993.53)

461.14 (299.60, 622.68)

6- to 9-month follow-up

Healthcare professional contact

93.32 (49.13, 137.50)

84.25 (42.98, 125.52)

9.07 (−49.86, 68.00)

91.18 (49.48, 132.88)

100.15 (38.27, 162.04)

−8.97 (−80.02, 62.09)

Hospital contact

70.23 (24.42, 116.03)

772.45 (−261.94, 1806.84)

−702.22 (−1654.53, 250.08)

87.73 (20.45, 155.01)

834.45 (−332.89, 2001.79)

−746.72 (−1822.32, 328.88)

Total

163.55 (91.60, 235.49)

856.70 (−185.64, 1899.04)

−693.15 (−1654.43, 268.12)

178.91 (91.11, 266.71)

934.60 (−254.38, 2123.58)

−755.69 (−1852.67, 341.28)

Total by collection method

493.62 (7.36, 979.88)

538.76 (−14.92, 1092.44)

Overall total cost

532.23 (237.90, 826.55)

1556.95 (−348.47, 3462.37)

−1024.72 (−2802.38, 752.93)

694.41 (460.40, 928.42)

1335.95 (28.32, 2643.58)

−641.54 (−1867.44, 584.35)

Overall total by collection method

1020.19 (129.19, 1911.19)

999.90 (387.23, 1612.58)

  1. CI confidence intervals