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. Author manuscript; available in PMC: 2010 Sep 29.
Published in final edited form as: J Am Dent Assoc. 2010 Mar;141(3):307–318. doi: 10.14219/jada.archive.2010.0165

TABLE 3.

Comparisons between the MTP* and NHANES III participants overall and by propensity score group, in P values.

CHARACTERISTIC PARTICIPANT GROUP
Entire
Sample
(n = 7,880)
Group 1
(n = 4,112)
Group 2
(n = 1,877)
Group 3
(n = 962)
Group 4
(n = 583)
Group 5
(n = 186)
Group 6
(n = 160)
Age < .001 .835 .049 .146 .088 .673 .106
Last Visit to a Dentist .406 .83 .235 .202 .124 < .001 .782
Time at Current Address < .001 .962 .803 .419 .49 .751 .736
Weight < .001 .967 .314 .711 .419 .679 .607
Height .051 .73 .314 .732 .432 .203 .625
Sex .004 .942 .167 .766 .594 .421 .322
Race or Ethnicity .013 .569 .536 .815 .439 .866 .159
Marital Status < .001 .539 .531 .982 .933 .067 .038
Self-Rated Health .002 .763 .278 .658 .75 .529 .651
Household Income < .001 .635 .95 .473 .181 .846 .725
Last Visit to a Physician .166 .315 .209 .859 .978 .152 .964
Nights in Hospital .853 .901 .267 .089 .358 .796 .862
Education Level < .001 .461 .62 .515 .909 .346 .399
*

MTP: Methamphetamine Treatment Project.

NHANES III: Third National Health and Nutrition Examination Survey.

Indicates a statistically significant difference at the α = .05 level.