Clinical symptoms, comorbidities and health outcomes among outpatients infected with the common cold coronaviruses versus influenza virus

Table 4 Adjusted model of risk factors for primary care visits following ccCoV and influenza virus infections

Variables	Primary care visits with symptoms of RTI
	ccCoV		Influenza
	Adjusted OR	P value	Adjusted OR (95% CI)	P value
	(95% CI)	P value	Adjusted OR (95% CI)	P value
^aGender	0.7 (0.4–1.4)	0.34	0.9 (0.6–1.4)	0.744
^aAge	1.0 (1.0–1.0)	0.499	1.0 (1.0–1.0)	0.983
^aPresence of baseline comorbidities	2.5 (1.1–5.9)	0.034*	1.9 (1.1–3.1)	0.017*
^bHypertension	1.1 (0.4–2.7)	0.913	1.0 (0.5–2.1)	0.892
^bDyslipidemia	1.8 (0.8–4.1)	0.176	1.6 (0.9–3.1)	0.124
^bDiabetes mellitus	1.2 (0.5-3.0)	0.694	0.9 (0.5–1.6)	0.64

Abbreviations: ccCoV, common cold coronaviruses; RTI, respiratory tract infection; OR, odds ratio; CI, confidence interval.
^a Adjusted for gender, age and presence of baseline comorbidities, as appropriate. Omnibus model coefficient P = 0.098 (ccCoV) and P = 0.050 (influenza). Hosmer-Lemeshow goodness-of-fit test chi square = 2.875 (df = 8), P = 0.942 (ccCoV); chi square = 8.777 (df = 8), P = 0.361 (influenza).
^b Adjusted for gender, age, hypertension, dyslipidemia, and diabetes mellitus, as appropriate. Omnibus model coefficient P = 0.553 (ccCoV) and P = 0.459 (influenza). Hosmer-Lemeshow goodness-of-fit test chi square = 11.630 (df = 8), P = 0.169 (ccCoV); chi square = 7.875 (df = 8), P = 0.446 (influenza).
*P < 0.05 is statistically significant

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