TABLE D-1 Example of Searches Using Key Words to Identify Relevant Literature

Search Number

Search Terms

Number of Hits

  1

food stamp program

     360

  2

(“food stamp?” or “supplemental nutrition assistance” or “thrifty food plan”),sh,de,hw,to,ab.

  1,663

  3

(SNAP adj3 {benefit? or assistance or secur* or insecure* or food)). ti,ab.

       16

  4

or/1-3

  1,666

  5

limit 4 to (English language and yr=*2000 –Current*)

     377

  6

remove duplicates from 5

     366

  7

food availability/

     680

  8

food security/

  1,221

  9

((food adj access*) or (food adj2 (insufficien* or insecure* or secur*))). Ti,ab.

  2,319

10

Or/7-9

  3,429

11

6 and 10

       55

12

income/ or household income/ or net cash income/

  3,253

13

exp social welfare/

     825

14

welfare.ti,ab,de,hw,sh.

13,865

•   economic insecurity,

•   food choice and cultural preferences,

•   food policy,

•   health and nutrition effects, and

•   program access.

ORGANIZATION OF THE LITERATURE

Relevant references obtained from the initial search were screened and categorized according to the research taxonomy shown in Box D-1. The committee organized the publications obtained from its search into three focus areas:

1.   content area,

2.   design of research study, and

3.   source of paper/publication.

The topics within each focus area of the taxonomy were then expanded. Key citations were selected by committee members and annotated by staff. Reference lists of key citations were provided in tabulated format to facilitate the committee’s review and selection of critical publications for inclusion in this report.



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