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. Author manuscript; available in PMC: 2016 Jun 23.
Published in final edited form as: Fam Med. 2010 Feb;42(2):121–132.
Demographics Overall Sample
10,175
n—unweighted
(%—unweighted)
Eligible Population
8,636
n—unweighted
(%—unweighted)
Survey Respondents
2,681
n—unweighted
(%—unweighted)
Response Rate
Percent of Survey
Respondents From
Eligible Population
(unweighted)
Overall 31.0%
Race/ethnicity*
 White 7,528 (74.0%) 6,369 (73.7%) 2,026 (75.6%) 31.8%
 Black 270 (2.7%) 218 (2.5%) 50 (1.9%) 22.9%
 Hispanic 1,864 (18.3%) 1,600 (18.5%) 475 (17.7%) 29.7%
 Asian 110 (1.1%) 95 (1.1%) 31 (1.2%) 32.6%
 American Indian 324 (3.2%) 286 (3.3%) 74 (2.8%) 25.9%
 Pacific Islander 13 (0.1%) 12 (0.1%) 6 (0.2%) 50.0%
 Other 47 (0.5%) 40 (0.5%) 16 (0.6%) 40.0%
 Unknown 19 (0.2%) 16 (0.2%) 3 (0.1%) 18.9%
Gender (child)
 Female 4,983 (49.0%) 4,227 (48.9%) 1,295 (48.3%) 30.6%
 Male 5,192 (51.0%) 4,409 (51.1%) 1,386 (51.7%) 31.4%
Age
 1 to 4 2,728 (26.8%) 2,259 (26.2%) 687 (25.6%) 30.4%
 5 to 9 2,943 (28.9%) 2,495 (28.9%) 811 (30.2%) 32.5%
 10 to 14 2,520 (24.8%) 2,192 (25.4%) 707 (26.4%) 32.3%
 15 and over 1,984 (19.5%) 1,690 (19.6%) 476 (17.8%) 28.2%
Region
 1 (NW Coastal) 1,685 (16.6%) 1,459 (16.9%) 504 (18.8%) 34.5%
 2 (Portland Area) 1,702 (16.7%) 1,387 (16.1%) 417 (15.6%) 30.1%
 3 (Central Western) 1,701 (16.7%) 1,448 (16.8%) 427 (15.9%) 29.5%
 4 (SW Coastal) 1,696 (16.7%) 1,462 (16.9%) 435 (16.2%) 29.8%
 5 (North Central, Columbia Gorge) 1,695 (16.7%) 1,422 (16.5%) 409 (15.3%) 28.8%
 6 (Southern and Eastern) 1,696 (16.7%) 1,461 (16.9%) 489 (18.2%) 33.5%
Current enrollment in a program sponsored by the
Office for Medical Assistance Programs (OMAP)
 At least one child enrolled in OMAP 5,087 (50.0%) 4,346 (50.3%) 1,471 (54.9%) 33.8%
 No child enrolled in OMAP 5,088 (50.0%) 4,290 (49.7%) 1,210 (45.1%) 28.2%
Monthly Income**
 <$500 3,109 (30.6%) 2,589 (30.0%) 770 (28.7%) 29.7%
 $501–$1,000 2,628 (25.8%) 2,221 (25.7%) 711 (26.5%) 32.0%
 $1,001–$1,500 1,976 (19.4%) 1,666 (19.3%) 487 (18.2%) 29.2%
 $1,501–$2,000 1,434 (14.1%) 1,249 (14.5%) 412 (15.4%) 33.0%
 >$2,000 1,028 (10.1%) 911 (10.5%) 301 (11.2%) 33.0%
*

Race and ethnicity are combined into one variable in this table because the administrative data available to us had only one combined variable. For the tables based only on self-reported data, there are two separate variables.

**

Household income data are reported as monthly income, which was available in the administrative data. Self-reported data about household size and income allowed us to calculate income as a percentage of the federal poverty level.