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Table 1 Subject characteristics

From: Effects of milk containing only A2 beta casein versus milk containing both A1 and A2 beta casein proteins on gastrointestinal physiology, symptoms of discomfort, and cognitive behavior of people with self-reported intolerance to traditional cows’ milk

Study group

Sequence 1

(n = 22)a

Sequence 2

(n = 23)b

All subjects

P-valuec

Gender

Male

10

(45.5 %)

11

(47.8 %)

21

(46.7 %)

Female

12

(54.5 %)

12

(52.2 %)

24

(53.3 %)

Age (year)

45.7

(12.3)

47.5

(15.6)

46.6

(14.0)

0.664

Weight (kg)

72.4

(19.9)

66.7

(14.3)

69.5

(17.3)

0.272

Height (cm)

167.5

(9.4)

166.4

(8.0)

166.9

(8.6)

0.695

BMI (kg/m2)

25.4

(4.6)

24.0

3.7

24.6

4.2

0.226

Body temperature (°C)

36.9

(0.1)

36.8

(0.2)

36.8

(0.2)

0.207

DBP (mmHg)

76.1

(5.2)

75.5

(6.5)

75.8

(5.8)

0.748

SBP (mmHg)

124.6

(6.7)

121.2

(8.8)

122.9

(7.9)

0.145

Lactose intolerant

8

(36.4 %)

15

(65.2 %)

23

(51.1 %)

 
  1. aSequence 1: A1/A2 → A2
  2. bSequence 2: A2 → A1/A2
  3. cANOVA
  4. BMI body mass index; DBP diastolic blood pressure; SBP systolic blood pressure