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. 2009 Oct 31;9:82. doi: 10.1186/1471-230X-9-82

Table 2.

Symptoms after intake of lactose in patients with and without lactose malabsorption (LM).

Symptoms LM
(N = 7)
Not LM
(N = 52)
Statistics
Pain/discomfort all 5/7 (71%) 21/52 (40%) p = 0.223
Pain/discomfort-ELL 5/7 (71%) 8/52 (15%) p = 0.004
Borborygmi all 5/7 (71%) 25/52 (48%) ns (p = 0.424)
Borborygmi-ELL 5/7 (71%) 8/51 (16%) p = 0.005
Bloating all 5/7 (71%) 24/52 (46%) ns (p = 0.254)
Bloating-ELL 5/7 (71%) 8/51 (16%) p = 0.005
Diarrhoea all 4/7 (57%) 16/52 (31%) ns (p = 0.213)
Diarrhoea-ELL 3/7 (43%) 4/51 (8%) p = 0.032
Constipation all 0/7 (0%) 4/52 (8%) ns (p = 1.00)
Constipation-ELL 0/7 (0%) 4/52 (8%) ns (p = 1.00)
Any symptom 6/7 (86%) 32/52 (62%) ns (p = 0.40)
Any symptom-ELL 6/7 (86%) 11/51 (22%) p = 0.002

ELL (= "Early and Long Lasting"): Symptoms starting within 5 h after intake of lactose and lasting for more than 2 h. Any symptom-ELL = Any "Early and Long Lasting" symptom.

The results are given as number of patients with proportions in brackets.