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. 2021 Feb 3;23(2):e23654. doi: 10.2196/23654

Table 2.

Characteristics of the selected platforms.

Platform Single or multiple Disease dimension For profit or not for profit Year started
A1 Single condition

  • Rare condition

 Not for profit 2006
A2 Multiple conditions

  • Multiple related chronic conditions

  • Trajectory 3: prolonged dwindling

Not for profit 1993
A3 Single condition

  • Chronic condition

  • Trajectory 1: short period of evident decline

Not for profit 2000
A4 Multiple conditions

  • Multiple different conditions

 For profit 2005
A5 Multiple conditions

  • Multiple different conditions

 For profit 1994
A6 Single condition

  • Chronic condition

  • Trajectory 2: long-term limitations with intermittent episodes

Not for profit N/A
A7 Single condition

  • Multiple related chronic conditions

  • Trajectory 2: short period of evident decline

For profit 2010
A8 Multiple conditions

  • Multiple different conditions

 For profit 2004
A9 Multiple conditions

  • Multiple different conditions

 For profit N/A
A10 Single condition

  • Mental health condition

 For profit N/A
A11 Single condition

  • Mental health condition

 For profit 2000