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Table 4 Relationship between vitamin D level and both frequency and severity of exacerbations in the last year in non-CF bronchiectasis patients

From: Impact of vitamin D status on CF and non-CF bronchiectasis outcomes

Pulmonary exacerbations in the last year Vitamin D group P-value
Deficient (< 20 ng/mL) Insufficient (20–29 ng/mL) Sufficient (≥30 ng/mL)
Frequency Infrequent (< 3 times) 3(33.3%) 5(62.5%) 3(100.0%) 0.166#
Frequent (≥3 times) 6(66.7%) 3(37.5%) 0(0.0%)
Severity Mild 1(11.1%) 3(37.5%) 2(66.7%) 0.232#
Moderate 6(66.7%) 5(62.5%) 1(33.3%)
Severe 2(22.2%) 0(0.0%) 0(0.0%)
  1. #Chi-square test