Is cardiac test availability a significant factor in weekend delays in discharge for chest pain patients?

The authors assessed whether the lack of weekend cardiac test availability significantly contributed to weekend delays in hospital discharge for "low-risk" chest pain patients. Mean lengths of stay were compared for late-week versus early-week admissions. Patients with late-week admissions had a 19% greater length of stay than did patients admitted earlier in the week (2.36 +/- 1.87 vs 1.91 +/- 1.21 days, p = 0.10, with p = 0.015 after adjusting for severity of illness). Cardiac diagnostic tests were ordered for only 4% of study patients. Therefore, the "weekend effect" existed in an environment where cardiac diagnostic tests were infrequently ordered.