Table 2. Prevalence ratios of asymptomatic presentation compared with symptomatic presentation in general practice for patients with diagnostics initiated by the GP (N = 369).

Characteristic	Patient, n	Adjusteda,b prevalence ratio (95% CI)
Follow-up status
Active	152	Reference
Completed	199	1.2 (0.9 to 1.7)
Missing	18
Sex
Female	258	Reference
Male	111	0.8 (0.5 to 1.1)
Age (years)
18–54	49	1.6 (1.0 to 2.2)
55–64	73	1.1 (0.7 to 1.6)
65–74	111	1.2 (0.8 to 1.7)
≥75	136	Reference
Educational levelc
Low	107	0.9 (0.6 to 1.3)
Medium	170	Reference
High	92	1.3 (0.9 to 1.7)
Cohabitation status
Cohabitating	204	Reference
Living alone	165	0.9 (0.7 to 1.2)
Comorbidity leveld
Low	274	Reference
Medium	81	0.8 (0.5 to 1.1)
High	14	0.4 (0.1 to 1.6)

^aCrude estimates were similar to adjusted estimates and, therefore, omitted from the table.^bComorbidity level was adjusted for educational level and age. Educational level and cohabitation status were adjusted for age. Follow-up, age, and sex were not adjusted.^cAccording to the International Standard Classification of Education, divided into low (<10 years), medium (10–15 years), and high (>15 years).^dAccording to the Charlson Comorbidity Index score, calculated based on diagnosis codes registered in the Danish National Patient Register in the 10 years preceding a recurrence diagnosis (excluding cancer-related diagnoses), divided into low (score = 0), medium (score = 1–2), and high (score ≥ 3). Bold indicates statistical significance, P≤0.05. CI = confidence interval.