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Table 2 These present 37 items are product of the second step of the study that gained the score of ≥ 1

From: Measurement components of socioeconomic status in health-related studies in Iran

Item name Frequency Weighta Medianb
Demography
Ethnicity, religion age, gender marital status 5 0.65
Household size 9 3.45 4.5
Urban residency 2 0.05
Existence of disabled in the family 1 0.5
Purchasing power
Monthly income 24 3.975 5
Monthly saving 1 0.75
Health expenditure 1 0.15
Annual income 1 0.025
Purchasing power 2 0.05
Insurance 3 0.225
Literacy
Head of household education 39 9.8 5
% of literate individuals in family 1 0.5
% of family members who are students 1 0.5
School type (public/private) 4 3.5 4
Employment status
Head of household job 33 7.35 5
Second job 1 0.025
% of individuals with employment in family 1 0.5
Unemployment 1 0.125
Housing and accommodation status
Whether the house had a yard 1 0.15
Type of home 13 6.875 4.5
Number of rooms 25 7.725 4
Main cooling devices 3 1.75 3
Home area 17 4.55 4
Gas pipe lines 4 2.125 2
Landline 11 5.125 1
Toilet 6 1.625 1
Internet access 6 2.125 3
Source of water 2 0.625
Electricity 1 0.125
Bathroom 10 4.375 1.5
Kitchen 9 4 1
Effluent disposal system 1 0.5
Kind of heating device 2 1.5 3
House value based on location 9 4.075 4
Home appliances
Vacuum cleaner 8 4.375 2
Washing machine 13 5.75 3
Dish washing machine 12 4.875 4
Media player 2 1.25 2
Hand carpet 4 1.525 3
Main cooking device 2 1.125 2
Microwave 10 4.625 4
Steam-cleaner 1 0.25
Furniture 4 0.775
Camcorder 1 1 2.5
Radio 1 0.5
3 dimensional TV (LCD, LED) 2 1.25 4
Color TV 8 3.775 2
Refrigerator 10 3.9 2
Side-by-side refrigerator 1 1 3
Freezer 13 5 2.5
Oven 3 1.5 2
Personal asset
Ownership of car 30 13.625 4
Motorcycle 7 2.625 2
Bicycle 1 1 2
Mobile 13 4.9 3
Smart phone 1 1 3.5
Personal computer/laptop 22 10.125 3.5
  1. The final median score was set at the level of ≥ 3.5, arbitrarily
  2. aThe weight of each study was calculated from: validation score × generalizability score
  3. bMedian score of appropriate rates were reported for items included in the second of the Delphi method