Table 1.

Characteristics of the study population, which consisted of males aged ≥20 years registered throughout 2012 with a solo GP who participated in the GP profile study (n = 76 672)

Characteristics of the study population
Mean age, years (SD); range	48.9 (17.1); 20–103
Median age (IQI)	48 (35–62)
	n (%)
Educational level
≤10 years	20 554 (26.8)
>10 years and ≤ 15 years	40 153 (52.4)
>15 years	12 742 (16.6)
Missing information	3223 (4.2)
Marital status
Married or cohabiting	50 672 (66.1)
Single	25 391 (33.1)
Missing information	609 (0.8)
PSA test in 2012
Registered with an incident test	2562 (3.3)
Registered with ≥1 repeated normal tests	1154 (1.5)
Registered with ≥1 repeated raised tests	657 (0.9)

IQI = interquartile interval. PSA = prostate specific antigen.