Evidence Table 15a. Distal Economic Outcomes, Disability: Randomized Controlled Trials

Author, yearDescription of study groupsTarget of interventionLength of F/UOutcomeOutcome self-reported by patients or providersNBaselineF/UChangeAdjustedQual. Score
tertile
Stone, 1981; Southeast London, 1977; Southeast London, 2001; Stone, 1978a; Stone, 1978b; Trevelyan, 1973The intervention group were South London patients aged 40 to 64 years in specific group practices; received 2 multiphasic screenings 2 years apart.Patients5 yearsMajor disability (e.g., inability to dress or undress themselves)7 Patients1978NR2.5%*NAYes 68
The comparison group consisted of South London patients aged 40 to 64 years in specific group practices; received usual care.19501.8%*Med.
Cutler, 1973; Collen, 1973; Dales, 1973; Ramcharan, 1973; Friedman, 1986; Dales, 1979; Norinder, 2002Intervention group: California Kaiser Health Plan members aged 35–54 encouraged to have multiphasic checkupPatients7–11 yearsA: Disability at 7 years95 PatientsA: baseline= 871, 7-year F/U = 793A: 95, 10.9%A: 168, 21.1%B: Health risk factorsNR56
B: Disability at 11 years among men aged 45–5496 B: 677 B: 158, 23.3% Low
Control group: California Kaiser Health Plan members aged 35–54 received usual careA: baseline= 941, 7-year F/U = 829A: 137, 14.6%A: 204, 24.6%
B: 738B: 219, 29.7%

* Authors reported there were no statistically significant differences, but formal significance testing was not reported.

Age, smoking, lipids, blood pressure, diabetes, social class, general practice group.

p <0.01, chi square test.

F/U = follow-up; NR = not reported NA = not applicable; NR = not recorded.

Qual. Score = quality score (for assessments of study quality, each reviewer independently judged study quality and rated items on quality assessment forms, scores were calculated by adding quality scores and dividing them by the maximum score for any given category)

From: Appendix G: Evidence Tables

Cover of Value of the Periodic Health Evaluation
Value of the Periodic Health Evaluation.
Evidence Reports/Technology Assessments, No. 136.
Boulware LE, Barnes GJ II, Wilson RF, et al.

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