Table 2.

The predictors for developing isolated polyradiculitis, peripheral facial palsy and encephalitis or myelitis in patients with early LNB.

	Univariable OR (95% CI)	Multivariable OR (95% CI)
Predictors for isolated polyradiculitis
Age (years)	1.02 (1.00–1.05); p = 0.125
Female sex	3.95 (1.59–9.80); p = 0.003	3.91 (1.45–10.55); p = 0.007
Untreated EM	3.26 (1.34–7.96); p = 0.009	3.24 (1.23–8.54); p = 0.018
Concomitant diseases	0.97 (0.42–2.25); p = 0.949
Fever ≥ 38 °C	0.20 (0.02–1.66), p = 0.137
Pleocytosis ≥ 300 × 106/l	0.42 (0.13–1.37), p = 0.151
Protein in CSF	0.50 (0.24–0.99), p = 0.045	0.65 (0.32–1.32); p = 0.230
Predictors for peripheral facial palsy
Age (years)	0.98 (0.95–1.00); p = 0.049	0.98 (0.95–1.00); p = 0.088
Male sex	2.27 (1.02–5.07); p = 0.045	1.63 (0.66–3.97); p = 0.287
Absence of observed EM	2.49 (1.06–5.81); p = 0.036	2.84 (1.15–7.00); p = 0.024
Concomitant diseases	0.83 (0.38–1.83); p = 0.643
Fever ≥ 38 °C	0.56 (0.15–2.11); p = 0.390
Pleocytosis ≥ 300 × 106/l	0.74 0.28–1.94); p = 0.541
Protein (g/l)	1.14 (0.74–1.78); p = 0.555
Predictors for encephalitis or myelitis
Age	1.01 (0.97–1.05); p = 0.676
Male sex	2.67 (0.65–10.97); p = 0.174
Untreated EM	0.95 (0.23–3.94); p = 0.943
Concomitant diseases	1.23 (0.33–4.75); p = 0.738
Fever ≥ 38 °C	17.00 (3.67–78.74); p < 0.001	12.11 (1.88–77.78); p = 0.009
Pleocytosis ≥ 300 × 106/l	12.5 (2.88–54.25); p = 0.001	10.58 (1.67–67.03); p = 0.012
Protein (g/l)	2.09 (1.17–3.74); p = 0.013	1.00 (0.46–2.14); p = 0.989

EM erythema migrans, CSF cerebrospinal fluid.

Variables with p < 0.05 in univariable regression were included into multiple regression models.

Model for isolated polyradiculitis: Hosmer and Lemenshow test Χ² = 16.54, df = 8, p = 0.035; Nagelkerke R² = 0.245.

Model for facial paresis: Hosmer and Lemenshow test Χ² = 9.13, df = 8, p = 0.331; Nagelkerke R² = 0.142.

Model for encephalitis or myelitis: Hosmer and Lemenshow test Χ² = 6.64, df = 8, p = 0.576; Nagelkerke R² = 0.402.