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. 2011 May 26;13(2):e41. doi: 10.2196/jmir.1702

Table 2.

No-show rates by portal enrollee status at time of clinic appointment

Parameter Nonuser No-Show
Rate (%)
HPV Enrollee No-Show
Rate (%)
Pa OR Nonuser/
Enrollee (95% CI)
All appointments 10.6 (18,423/173,204) 5.0 (1245/24,915) < .001 2.26 (2.2-2.33)
Race
Asian 5.5 (277/5013) 4.1 (37/900) .09 1.36 (1.14-1.63)
Black 16.4 (12,325/75,141) 8.4 (418/4949) < .001 2.13 (2.02-2.24)
White 5.7 (4468/78,317) 4.1 (745/18,209) < .001 1.42 (1.36-1.48)
Other 9.2 (1353/14,733) 5.3 (45/857) < .001 1.82 (1.56-2.13)
Age group
≥ 65 5.9 (1718/29,182) 3.5 (169/4862) < .001 1.74 (1.6-1.89)
55-64 6.8 (1360/19,964) 4.1 (236/5701) < .001 1.69 (1.57-1.82)
40-54 8.6 (2391/27,829) 5.2 (378/7238) < .001 1.71 (1.61-1.81)
30-39 10.6 (1526/14,372) 5.5 (196/3537) < .001 2.02 (1.87-2.19)
18-29 15.2 (2311/15,203) 7.1 (150/2117) < .001 2.35 (2.15-2.57)
≤ 17 13.7 (9117/66,654) 8.0 (116/1460) < .001 1.84 (1.67-2.02)
Sex
Male 10.8 (7988/73,781) 4.7 (436/9184) < .001 2.44 (2.32-2.56)
Female 10.5 (10,435/99,423) 5.1 (809/15,731) < .001 2.16 (2.08-2.25)
Ethnicity
Hispanic/Latino 10.4 (946/9128) 6.7 (20/299) .04 1.61 (1.28-2.04)
Other 10.7 (17,477/164,076) 5.0 (1225/24,616) < .001 2.28 (2.21-2.35)
Day of week
Monday 11.0 (4012/36,611) 5.2 (283/5441) < .001 2.24 (2.11-2.39)
Tuesday 10.2 (3712/36,564) 4.9 (291/5988) < .001 2.21 (2.08-2.35)
Wednesday 10.6 (3663/34,667) 4.8 (225/4705) < .001 2.35 (2.19-2.52)
Thursday 10.1 (3299/32,747) 4.5 (214/4738) < .001 2.37 (2.20-2.55)
Friday 11.4 (3454/30,169) 5.8 (228/3922) < .001 2.09 (1.95-2.25)
Saturday 11.6 (283/2446) 3.3 (4/121) .003 3.83 (2.29-6.39)
Insurance
Medicaid 19.0 (7926/41,689) 10.3 (76/737) < .001 2.04 (1.81-2.31)
Medicare 7.2 (2166/30,165) 4.1 (182/4402) < .001 1.79 (1.66-1.94)
Private 7.7 (7440/96,687) 4.9 (937/19,150) < .001 1.62 (1.56-1.68)
Uninsured/self-pay 23.2 (586/2525) 10.4 (17/163) < .001 2.60 (2.00-3.37)
Unknown 14.3 (305/2138) 7.1 (33/463) < .001 2.17 (1.79-2.62)
Visit type
Return visits 10.3 (15,509/149,974) 4.6 (964/20,904) < .001 2.39 (2.31-2.47)
Study visits 12.7 (1970/15,541) 7.5 (236/3133) < .001 1.78 (1.66-1.91)
Consults 13.5 (343/2539) 5.3 (20/375) < .001 2.77 (2.19-3.51)
New visits 11.7 (601/5150) 5.0 (25/503) < .001 2.53 (2.05-3.12)
Clinic
Duke Children’s Primary Care, clinic 1 6.1 (878/14,349) 5.4 (33/615) .49 1.15 (0.96-1.38)
Duke Children’s Primary Care, clinic 2 16.4 (7360/45,022) 10.4 (122/1169) < .001 1.68 (1.52-1.85)
Duke Children’s Primary Care, clinic 3 16.4 (465/2839) 2.3 (1/43) .01 8.23 (2.99-22.66)
Duke Primary Care, clinic 1 8.2 (976/11,953) 5.4 (353/6542) < .001 1.56 (1.46-1.66)
Duke Primary Care, clinic 2 13.1 (5102/38,817) 5.4 (307/5666) < .001 2.64 (2.49-2.81)
Duke Primary Care, clinic 3 4.5 (1525/34,031) 2.6 (130/5086) < .001 1.79 (1.63-1.96)
Hematology/oncology clinic 8.2 (2158/26,193) 5.3 (312/5794) < .001 1.58 (1.49-1.68)

a P value by 2-tailed χ2 test