Table 2. Median and IQR for age at first sex and age at marriage by reliability of data and birth cohort for men and women.

Birth cohort	Age at first sex		Age at first marriage
	All data	Reliable data	All data	Reliable data
	Median (IQR)	Median (IQR)	Median (IQR)	Median (IQR)
Men
1950–9	20.1 (18.3–22.4)	19.9 (18.0–22.2)	24.5 (22.0–27.0)	24.6 (21.9–27.0)
1960–9	19.6 (17.9–21.6)	19.5 (17.8–21.7)	24.7 (22.0–27.4)	25.0 (22.0–27.7)
1970–9	19.0 (17.3–20.9)	19.0 (17.2–20.9)	23.2 (21.2–25.2)	23.4 (21.3–25.4)
Women
1950–9	19.0 (17.3–20.6)	18.9 (17.2–20.5)	19.1 (17.4–20.8)	18.9 (17.2–20.7)
1960–9	18.7 (17.0–20.6)	18.7 (17.0–20.6)	18.9 (17.2–20.9)	18.8 (17.0–20.8)
1970–9	19.0 (17.4–20.8)	19.0 (17.5–20.8)	19.3 (17.7–21.1)	19.3 (17.7–21.2)

IQR, interquartile range.