borderline significantP =0.070
Some borderline significant different relationships were observed in the stratified analyses: age ≤ 18 months (adjusted OR = 2.95, 95% CI = 0.92–9.51, P =0.070), male sex (adjusted OR = 2.19, 95% CI = 0.95–5.08, P =0.067), and clinical stage III+IV (adjusted OR = 2.12, 95% CI = 0.98–4.56, P =0.055).