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. Author manuscript; available in PMC: 2017 Oct 31.
Published in final edited form as: Curr Hypertens Rep. 2015 Dec;17(12):94. doi: 10.1007/s11906-015-0606-5

Table 1.

Characteristics of Treatment vs. Control Comparisons Included in Medication Adherence Meta-analysis

Characteristic k Min Q1 Mdn Q3 Max
Total number of treatment subjects at outcome 112   8 30 56 154 3407
Total number of control subjects at outcome 112   5 26 51 144 3406
Percentage attrition across treatment & control subjects 93   0   0   8.1   23.1     82.2
Percentage from underrepresented ethnic/racial groups in North America, Europe, and Australia studies 45   5 52.7 75 100   100
Percentage female 98   0 45 57   66   100
Mean age (years) 90 39 54.5 59.2 63.8     77.4
Mean number of prescribed medications   9   1.93   3.1   5.1   5.5      6.93
Number of intervention sessions 71   1   2   4   8   52
Minutes per intervention session 29   6 12   20  35   90
Days over which the intervention was delivered 94   1 84 183 224 732

Note. Includes all studies that contributed at least one effect size to primary analyses.

k denotes number of comparisons providing data on characteristic.

Min=minimum, Q1=first quartile, Mdn=median, Q3=third quartile, Max=maximum.