Incidence of gallstone disease in Italy: Results from a multicenter, population-based Italian study (the MICOL project)

Table 8 Distribution of pain characteristics (and unadjusted ORs) in subjects reporting abdominal pain

Characteristics of Pain	Gallstone-free subjects	Gallstones not previously diagnosed (n = 312)	Gallstones previously diagnosed (n = 112)	Cholecystectomized (n = 61)
Radiation
Not radiated (%)	53.0	55.4	43.9	53.5
Radiated (%)	37.4	41.5	45.6	46.5
OR (95% CI)		0.97 (0.63-1.50)	1.11 (0.74-1.66)	0.94 (0.57-1.53)
Duration1
< ½ h (%)	30.3	35.5	7.8	16.3
½-1 h (%)	21.1	19.4	21.6	16.3
1-3 h (%)	16.0	19.4	31.4	18.6
> 3 h (%)	32.6	25.8	39.2	48.8
OR (95% CI)		0.89 (0.71-1.10)	1.35 (1.05-1.75)	1.27 (0.96-1.69)
Tollerability
Not forced to rest (%)	80.5	68.3	62.0	25.6
Forced to rest (%)	19.5	31.7	38.0	74.4
OR (95% CI)		1.98 (1.11-3.51)	2.26 (1.22-4.18)	9.88 (4.82-20.27)
Relationship with meals
Yes (%)	13.2	9.7	10.2	9.5
No (%)	86.8	90.3	89.8	90.5
OR (95% CI)		1.84 (0.64-5.23)	1.30 (0.47-3.63)	1.29 (0.37-4.47)
During meals
Yes (%)	2.6	1.7	6.1
No (%)	97.4	98.3	93.9	100
OR (95% CI)		0.94 (0.12-7.32)	0.38 (0.10-1.48)	129.09 (0.90-4.62)
Soon after meals
Yes (%)	32.3	24.6	43.1	40.5
No (%)	67.7	75.4	56.9	59.5
OR (95% CI)		1.61 (0.84-3.09)	0.70 (0.37-1.31)	0.63 (0.31-1.25)
After heavy meals
Yes (%)	24.5	23.8	26.0	23.8
No (%)	75.5	76.2	74.0	76.2
OR (95% CI)		1.02 (0.55-1.91)	0.73 (0.38-1.38)	1.82 (0.77-4.33)
Relieved by bowel movements
Yes (%)	41	30	28	12.2
No (%)	59	70	72	87.8
OR (95% CI)		2.02 (1.07-3.82)	1.76 (0.99-3.10)	5.35 (2.07-13.76)
Clinical signs of gallstone complications
Yes (%)	29.9	36.4	47.7	69.4
No (%)	70.1	63.6	52.3	30.7
OR (95% CI)		1.31 (0.69-2.46)	2.13 (1.16-3.94)	5.28 (2.56-10.9)

¹The category “< ½ h” has been taken as baseline.