Table 5.
Association and Concordance between zip code-derived RUCA category and self-reported geographic status.
| Spearman rank correlation | Gwet agreement coefficient | |||
|---|---|---|---|---|
| Coefficient (95% CI) |
Scale | Coefficient (95% CI) |
Benchmark scale for reliability (Gwet AC) | |
| Rural identity scales (from SR) | 0.412*** (0.358, 0.467) | Moderate | 0.080** (0.009, 0.151) | Slight |
| “How much do you see yourself belonging to a rural community?” | 0.392*** (0.333, 0.450) | Moderate | 0.192*** (0.126, 0.259) | Slight |
| “How much is being from a rural community a part of who you are?” | 0.391*** (0.334, 0.448) | Moderate | 0.200*** (0.136, 0.265) | Slight |
| Rural attitude scales (from SR) | 0.328*** (0.269, 0.385) | Moderate | −0.060** (−0.119, 0.001) | Poor |
| “How much do you identify with people who live in rural communities?” | 0.309*** (0.248, 0.369) | Moderate | 0.031 (−0.032, 0.093) | Slight |
| “To what extent do you feel your general attitudes and opinions are similar to people who live in rural communities?” | 0.284*** (0.222, 0.345) | Moderate | 0.129*** (0.073, 0.184) | Slight |
| “To what extent do you feel that you are typical of people who live in rural communities?” | 0.315*** (0.254, 0.376) | Moderate | 0.265*** (0.209, 0.319) | Fair |
| Urban attitude scales (from SR) | ||||
| “To what extent do you consider yourself a ‘city’ person?” | 0.413*** (0.359, 0.468) | Moderate | −0.108*** (−0.179, −0.037) | Poor |
| Combined scale (all 6 items) | 0.427*** (0.372, 0.483) | Moderate | −0.125*** (−0.187, −0.063) | Poor |
Correlation coefficients are interpreted as: <0.1: “insubstantial correlation”; 0.1 to 0.3: “small correlation”; 0.3 to 0.5: “moderate correlation”; >0.5: “large correlation” as per Cohen (1988).[21] Gwet probabilistic benchmarking method according to the Landis and Koch scale of reliability is: −1.0 to 0.0 (Poor), 0.0–0.2 (Slight), 0.2–0.4 (Fair), 0.4–0.6 (Moderate), 0.6–0.8 (Substantial), 0.8–1.0 (Almost Perfect) (Gwet, 2014).[22] ***, **, * denote statistical significance at the 1%, 5%, and 10% levels.
AC = agreement coefficient, CI = confidence interval, Gwet AC = Gwet agreement coefficient, SR = survey response.