Table 3 ASQ-3 neurodevelopmental diagnoses at 6, 12, and 18 months in the low-altitude and high-altitude groups

From: Neurodevelopmental outcomes of infants born at high altitude: evidence from Tibet

  

low-altitude group (Xi’an)

high-altitude group (Lhasa)

p-value

Month 6

n (%)

n = 100

n = 50

 

Communication

Above cut-off

86 (86.0)

43 (86.0)

1.000 a

Blow/Close to cut-off

14 (14.0)

7 (14.0)

Gross motor

Above cut-off

91 (91.0)

39 (78.0)

0.027* a

Blow/Close to cut-off

9 (9.0)

11 (22.0)

Fine motor

Above cut-off

75 (75.0)

40 (80.0)

0.495 a

Blow/Close to cut-off

25 (25.0)

10 (20.0)

Problem solving

Above cut-off

75 (75.0)

41 (82.0)

0.334 a

Blow/Close to cut-off

25 (25.0)

9 (18.0)

Personal-social

Above cut-off

86 (86.0)

44 (88.0)

0.734 a

Blow/Close to cut-off

14 (14.0)

6 (12.0)

Month 12

n (%)

n = 94

n = 49

 

Communication

Above cut-off

82 (87.2)

46 (93.9)

0.263 b

Blow/Close to cut-off

12 (12.8)

3 (6.1)

Gross motor

Above cut-off

85 (90.4)

36 (73.5)

0.008** a

Blow/Close to cut-off

9 (9.6)

13 (26.5)

Fine motor

Above cut-off

71 (75.5)

36 (73.5)

0.787 a

Blow/Close to cut-off

23 (24.5)

13 (26.5)

Problem solving

Above cut-off

77 (81.9)

43 (87.8)

0.367 a

Blow/Close to cut-off

17 (18.1)

6 (12.2)

Personal-social

Above cut-off

78 (83.0)

38 (77.6)

0.431 a

Blow/Close to cut-off

16 (17.0)

11 (22.4)

Month 18

n (%)

n = 85

n = 47

 

Communication

Above cut-off

68 (80.0)

41 (87.2)

0.294 a

Blow/Close to cut-off

17 (20.0)

6 (12.8)

Gross motor

Above cut-off

77 (90.6)

30 (63.8)

<0.001***a

Blow/Close to cut-off

8 (9.4)

17 (36.2)

Fine motor

Above cut-off

57 (67.1)

33 (70.2)

0.710 a

Blow/Close to cut-off

28 (32.9)

14 (29.8)

Problem solving

Above cut-off

62 (72.9)

38 (80.9)

0.310 a

Blow/Close to cut-off

23 (27.1)

9 (19.1)

Personal-social

Above cut-off

70 (82.4)

41 (87.2)

0.463 a

Blow/Close to cut-off

15 (17.6)

6 (12.8)

  1. * p < 0.05; ** p < 0.01; *** p < 0.001.
  2. aPearson Χ2-test.
  3. bFisher’s exact test.