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Table 1 Comparison of the demographic and main clinical results of IBS-D patients and healthy subjects

From: Prevalence of lactose intolerance in patients with diarrhea-predominant irritable bowel syndrome: data from a tertiary center in southern China

 

IBS-D patients (n = 109)

Healthy subjects (n = 50)

Statistics

Age (years)

36.0 ± 12.2

34.8 ± 13.3

ns (t = 0.565, P = 0.573)

Male/female

57/52

26/24

ns (χ 2 = 0.001, P = 0.973)

BMI

21.40 ± 2.83

21.27 ± 2.32

ns (t = 0.286, P = 0.775)

LM (%)

85 (82/96)

72 (34/47)

χ 2 = 3.522, P = 0.061

LI (%)

45 (43/96)

17 (8/47)

χ 2 = 9.684, P = 0.002

Hydrogen non-producers (%)

12 (13/109)

6 (3/50)

ns (χ 2 = 1.330, P = 0.249)

Maximum H2 excretion (ppm)

61 ± 55

66 ± 58

ns (t = 0.474, P = 0.636)

Total H2 excretion (ppm)

390 ± 328

448 ± 375

ns (t = 0.965, P = 0.336)

  1. IBS-D diarrhea-predominant irritable bowel syndrome, BMI body mass index, LM lactose malabsorption, LI lactose intolerance, ns not significant