Table 1.
Summary Statistics of Self‐Reported and Documented Health Care Utilization in the Past 12 Months among Homeless Adults
| Self‐Reported Utilization | Documented Utilization | Difference (Self‐Reported Minus Documented) | 95% CI for Mean Difference | Spearman's Rho | |
|---|---|---|---|---|---|
| Ambulatory care visits | |||||
| N (%) | 976 (83.9) | 941 (80.9) | |||
| Number of visits | |||||
| Mean (SD) | 11.2 (19.5) | 9.6 (13.9) | 1.6 (20.1) | 0.4, 2.8a | 0.50b |
| Median (IQR) | 4.0 (11.0) | 5.0 (11.0) | 0.0 (6.0) | ||
| Range | 0–221 | 0–113 | −110 to 197 | ||
| Emergency department encounters | |||||
| N (%) | 580 (49.9) | 605 (52.0) | |||
| Number of visits | |||||
| Mean (SD) | 1.4 (2.8) | 2.0 (4.5) | −0.6 (4.1) | −0.8, −0.4a | 0.70b |
| Median (IQR) | 0.0 (2.0) | 1.0 (2.0) | 0.0 (1.0) | ||
| Range | 0–35 | 0–64 | −54 to 59 | ||
| Hospitalizations | |||||
| N (%) | 225 (19.4) | 195 (16.8) | |||
| Number of visits | |||||
| Mean (SD) | 0.3 (1.1) | 0.3 (0.9) | 0.0 (1.1) | 0.0, 0.1 | 0.60b |
| Median (IQR) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | ||
| Range | 0–15 | 0–11 | −10 to 10 | ||
a
Difference is statistically significantly different from zero according to paired t‐test (p < .05).
b
Correlation between self‐reported and documented counts of number of health care visits is statistically significant according to nonparametric Spearman rank test (p < .001).
CI, confidence interval; IQR, interquartile range; SD, standard deviation.