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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)