Table 1.

Distribution of cases and controls

			Age at inclusion in study (years)		Age used for exposure analysis (years)
	Gender	n	Mean	Standard deviation	Mean	Standard deviation
Cases	Female	438	62.0	9.6	59.6	9.8
	Male	301	60.0	11.1	57.1	11.2
Controls	Female	303	57.8	11.8	54.8	11.8
	Male	268	53.9	12.7	50.9	12.7