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Table 1 Economic and social factors investigated in the studies included in the systematic review

From: A global systematic overview of socioeconomic factors associated with antidiabetic medication adherence in individuals with type 2 diabetes

Economic and social factor

Subgroups

Direction of the association with antidiabetic medication adherence

Increase

Equal

Decrease

Socioeconomic status

Socioeconomic status

CS: 4 [24,25,26,27]

CS: 7 [28,29,30,31,32,33,34] C: 1 [35]

 

Occupational status

Occupational status

 

CS: 16 [25, 32, 36,37,38,39,40,41,42,43,44,45,46,47,48,49]

C: 1 [50]

I: 1 [51]

 
 

Employed

  

CS: 1 [52]

C: 1 [53]

 

Unemployed

CS: 1 [54]

CS: 1 [55]

CS: 1 [56]

 

Retired

  

CS: 1 [57]

 

Housewife

CS: 1 [33]

  
 

Type of employment

 

CS: 1 [58]

 
 

Agricultural job

  

CS: 1 [31]

Income

High income

CS: 7 [42, 52, 59,60,61,62,63]

C: 1 [64]

RCT: 1 [65]

CS: 14 [25, 37, 41, 44, 46, 54, 58, 66,67,68,69,70,71,72]

I: 1 [51]

CS: 1 [73]

 

Daily paid worker

  

CS: 1 [31]

 

Financial hardship

  

CS: 6 [74,75,76,77,78,79]

 

High medication cost*

 

CS: 1 [80]

CS: 2 [67, 81]

Housing type

Housing status

  

CS: 1 [82]

 

Homeless

  

C: 1 [83]

 

Owning a house

 

CS: 1 [45]

 

Insurance Status

Insurance status

 

CS: 4 [71, 72, 84, 85]

 
 

Medicaid

  

CS: 1 [77]

C: 3 [86,87,88]

 

Medicare

  

C: 2 [86, 88]

 

None

  

CS: 3 [45, 67, 76]

C: 1 [87]

RCT: 1 [65]

I: 1 [89]

 

Capitated health plan

  

CC: 1 [90]

 

Commercial insurance

CS: 3 [42, 58, 91]

  
 

Having health coverage

I: 1 [51]

  
 

Higher co-payment

  

C: 4 [92,93,94,95] C:1 [50]

RCT: 1 [65]

Economic support

Social security

  

CS: 1 [71]

 

Economic support by relatives

  

CS: 1 [76]

Transportation availability

Transportation availability

 

CS: 1 [36]

 

Civil status

Civil status

 

CS: 20 [25, 29, 31, 36, 37, 39, 42, 45, 48, 50, 54, 62, 66, 75, 82, 96,97,98,99,100]

C: 1 [83]

 
 

Married

CS: 4 [27, 56, 101, 102]

C: 1 [53]

 

CS: 1 [70]

 

Divorced

  

CS: 1 [103]

 

Widow

  

CS: 1 [103]

 

Single

  

CS: 2 [71, 104]

Living arrangement

Living status

 

CS: 4 [30, 36, 52, 105]

RCT: 1 [106]

 
 

Smaller family size

CS: 1 [91]

  
 

Living alone

CS: 1 [45]

  

Education

Education status

 

CS: 36 [25, 28, 30, 31, 37, 43,44,45,46,47, 49, 52, 54, 56, 59,60,61, 67, 70,71,72,73, 75, 81, 82, 85, 97, 98, 101, 107,108,109,110,111,112,113]

C: 2 [50, 114]

I: 1 [51]

RCT: 1 [106]

 
 

Higher education

CS: 14 [24, 27, 36, 38, 41, 42, 55, 63, 91, 100, 102, 115,116,117]

C: 2 [53, 64] RCT: 1 [26]

 

CS: 1 [74]

 

Higher education in immigrants

CS: 1 [85]

  
 

Illiterate*

 

CS: 5 [32,33,34, 46, 118]

CS: 3 [48, 62, 100]

 

Numeracy

CS: 2 [72, 118]

  
 

Health literacy

CS: 2 [59, 72]

C: 1 [119]

CS: 1 [60]

 
 

Disease knowledge

CS: 1 [62]

CS: 2 [71, 115]

 

Caste

Caste

 

CS: 1 [46]

 

Religion

Religious status

CS: 1 [33]

CS: 5 [32, 36, 37, 48, 81]

 
 

Hindu

  

CS: 1 [46]

Family support (social)

Family support status

CS: 1 [27]

CS: 1 [115]

 
  1. Factors marked with *—a study has found an association, but did not state in which direction [105]
  2. Type of study—CS: Cross-sectional, C: Cohort, I: Interventional, RCT: Randomized controlled trial
  3. Bolded numbers—Number of articles
  4. Number in brackets—References to the articles