Table 1.

Participant Sociodemographics Overall and by Practice Type

VariableAll Patients (n = 616)FQHC (n = 345)Non-FQHC (n = 271)FQHC vs Non-FQHC Difference
Age in years
 Mean (SD)61.8 (11.0)57.7 (11.1)66.9 (8.6)<0.0001* <0.0001
 Min-Max18 to 8818 to 8831 to 84<0.0001 <0.0001§
Gender N (%)
 Men252 (40.9%)127 (36.8%)125 (46.1%)0.02 0.05
 Women364 (59.1%)218 (63.2%)146 (53.9%)
Race/Ethnicity N (%)
 Black18 (3.9%)10 (5.1%)8 (3.0%)<0.0001 0.002
 Hispanic100 (21.6%)76 (38.6%)24 (9.0%)
 Non-Hispanic White320 (69.0%)90 (45.7%)230 (86.1%)
 Asian20 (4.3%)17 (8.6%)3 (1.1%)
 Other/Declined6 (1.3%)4 (2.0%)2 (0.8%)
Primary Language N(%)
 English505 (84.2%)250 (72.7%)255 (99.6%)<0.0001 n/a
 Spanish95 (15.8%)94 (27.3%)1 (0.4%)
Food availability N (%)
 No lack of food security363 (58.9%)163 (47.3%)200 (73.8%)<0.0001 <0.0001
Health Literacy
 Median score (IQR)3.66 (3.0 to 3.7)3.3 (2.7 to 3.7)3.67 (3.0 to 3.67)0.11 0.17§
  • Abbreviations: IQR, interquartile range, 25th-75th percentile; FQHC, Federally Qualified Health Centers; SD, standard deviation.

  • *t test with assumption of normality.

  • CLM – Clustered linear model with testing FQHC/Non-FQHC flag.

  • Wilcoxon Rank Sum.

  • §Clustered linear model with testing FQHC/Non-FQHC flag regressed against value ranks.

  • χ2 test.

  • Rao-Scott Categorical test accounting for facility clustering.