Abdominal Symptoms and Incident Gallstones in a Population Unaware of Gallstone Status

Table 1

Characteristics of study population at baseline, 1982–84.

		Incident gallstones or cholecystectomy (%)/median [IQR]	No gallstones (%)/median [IQR]	Total (%)/median [IQR]	Missing
Sex	Female	141 (55.1)	1217 (47.0)	1358 (47.7)
	Male	115 (44.9)	1375 (53.0)	1490 (52.3)
Age		50.0 [40.0; 52.5]	40.0 [30.0; 50.0]	40.0 [30.0; 50.0]
Body mass index		24.2 [22.1; 27.2]	23.8 [21.7; 26.4]	23.9 [21.7; 26.5]
Consumption of alcohol	Units/week	5.0 [2.0; 10.0]	6.0 [2.0; 12.0]	6.0 [2.0; 12.0]	1
Cohabitant status	Living with someone	212 (82.8)	2180 (84.1)	2392 (84.0)
	Alone	29 (11.3)	334 (12.9)	363 (12.7)
	Always alone	15 (5.9)	78 (3.0)	93 (3.3)
Social group	I + II	57 (22.3)	500 (19.3)	557 (19.6)	2
	III	71 (27.7)	731 (28.2)	802 (28.2)
	IV	80 (31.2)	824 (31.8)	904 (31.8)
	V	48 (18.8)	535 (20.7)	583 (20.5)
Stools per week	Number/week	7.0 [6.0; 8.0]	7.0 [7.0; 8.0]	7.0 [7.0; 8.0]	12