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Table 1 Age distribution (in years) of the participants

From: Reference equations for spirometric indices from a sample of the general adult population in Nigeria

Age group Males (358) Females (362)
Frequency (%) Frequency (%)
18–25 81(22.6) 87(24.0)
26–35 95(26.5) 44(12.2)
36–45 64(17.9) 71(19.6)
46–55 50(14.0) 43(11.9)
56–65 68(19.0) 117(32.3)