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Table 5 The association between cognitive function and seasonal indoor ventilation frequency

From: Association between indoor ventilation frequency and cognitive function among community-dwelling older adults in China: results from the Chinese longitudinal healthy longevity survey

Season a

Low frequency

Intermediate frequency

High frequency

RR (95%CI)

Spring

Ref.

0.87 (0.78–0.98)

0.92 (0.82–1.03)

Summer

Ref.

0.96 (0.82–1.12)

0.95 (0.82–1.10)

Autumn

Ref.

0.87 (0.78–0.98)

0.90 (0.80–1.01)

Winter

Ref.

0.84 (0.78–0.90)

0.92 (0.86–0.99)

  1. Abbreviations: RR Relative risk, CI Confidence Interval
  2. a Fully adjusted model: adjusted for age, sex, residency, education level, marital status, body mass index, smoking status, drinking status, physical activity and dietary diversity, cooking ventilation, cooking fuel, and family income, leisure activity, the activity of daily living, and chronic diseases (diabetes, heart disease, stroke, and cancer)