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. 2022 Aug 20;10(8):1363. doi: 10.3390/vaccines10081363

Table 2.

Multivariable association between clinical characteristics and SARS-CoV-2 Spike IgG antibody negative status.

Characteristics Referent Group Odds Ratio 95% CI
Age ≥ 65 years <65 Years 1.13 0.64–1.98
Sex, Female (%) Male 1.4 0.77–2.54
Composite Chronic Health Conditions (CHCs)
1 CHC No CHC 2.69 1.25–5.79
2 CHCs No CHC 2.82 1.14–7.0
≥3 CHCs No CHC 4.52 1.68–12.14
Composite Medications
1 medication No Medications 1.43 0.76–2.71
≥2 medications No Medications 6.08 2.01–18.35

Abbreviations: CHC—chronic health conditions; CI—confidence interval. Statistically significant p-values are represented in bold font.