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. 2020 May 27;8(5):e17300. doi: 10.2196/17300

Table 7.

Comparison of evaluation outcomes used in the original 2015 study and this study.

Instrument This study (47 apps and 59 evaluations) 2015 study (46 apps and 46 evaluations)
Content evaluation tool (%), median (IQR)

Coverage of information 64 (40-87) 65 (58-71)

Depth of information 48 (32-67) Reported graphically
App quality using Quality Component Scoring System (scored out of 100%)

Median (IQR) Not undertaken 49 (41-60)

Proportion rated poor (<50% score) Not undertaken 91
App quality using Mobile App Rating Scale (scored out of 5 points)

Objective scale


Median (IQR) 3.63 (3.24-3.99) Not developed at the time of writing


Proportion rated poor (%, ≤2.5 score) 2 Not developed at the time of writing

Modified scale


Median (IQR) 3.41 (2.99-3.64) Not developed at the time of writing


Proportion rated poor (%, ≤2.5 score) 7 Not developed at the time of writing

Subjective scale


Median (IQR) 2.50 (2.0-3.5) Not developed at the time of writing


Proportion rated poor (%, ≤2.5 score) 54 Not developed at the time of writing
Suitability Assessment of Material (%)

Superior overall (70%-100%) 44 15

Adequate overall (40%-69%) 53 39

Not suitable (0%-39%) 3 42
Readability, median (IQR)

Flesch-Kincaid online tool 8 (6-10) 8 (7-10)

Flesch-Kincaid Word tool 8 (6-9) 8 (7-10)

Simple Measure of Gobbledygook 8 (6-9) 7 (7-8)