Association between access to primary care and unplanned emergency department return visits among patients 75 years...

To identify factors associated with unplanned return visits to the emergency department (ED) among the population aged 75 years and older. Moreover, it aims to determine the association between patients' access to primary care and unplanned return visits.

Data were collected from structured interviews, administrative databases, and medical charts at the index visits, and follow-up telephone calls were made at 3 months.

Emergency departments of the 3 tertiary care hospitals in Montréal, Que.

Community-dwelling patients aged 75 years and older.

Zero-inflated negative binomial regression analysis was conducted of unplanned return visits within 3 months. Rate ratios (RRs) and odds ratios (ORs) with 95% CIs are presented.

During the study period, 4577 patients were identified, 2303 were recruited, and 1998 were retained for the analysis. Among the analysis sample, 33% were 85 and older, 34% lived alone, and 91% had a family physician. Before their ED visits, 16% of patients attempted to contact their family physicians. More than half of the patients reported having difficulty seeing their physicians for urgent problems, more than 40% had difficulty speaking with their family physicians by telephone, and more than one-third had difficulty booking appointments for new health problems. Within 3 months, 562 patients (28%) had made 894 return visits. Factors associated with a lower return visit rate included age 85 years and older (RR=0.80; 95% CI 0.67 to 0.96), less severe triage score (RR=0.83; 95% CI 0.74 to 0.92), and hospitalization at the index visit (RR=0.76; 95% CI 0.64 to 0.90). Factors that resulted in a higher return visit rate were difficulty booking appointments for new problems with their family physicians (RR=1.19; 95% CI 1.01 to 1.41), having had ED visits within the previous 6 months (RR=1.47; 95% CI 1.28 to 1.68), and higher Charlson comorbidity index scores (RR=1.06; 95% CI 1.01 to 1.11). Having had ED visits within the previous 6 months (OR=2.11; 95% CI 1.27 to 3.49), having a higher Charlson comorbidity index score (OR=1.41; 95% CI 1.19 to 1.68), and having received community care services (OR=3.00; 95% CI 0.95 to 9.53) also increased the odds of return visits.

Although most people 75 years and older have a family physician, problems still exist in terms of timely access. Unplanned return visits to the ED are associated with having more comorbidities, having had previous ED visits, having already received community services, and having difficulty booking appointments with family physicians for new problems.