Table 1 Characteristics, Health Outcomes, and Covariates by Age

Total Population

n (%)

Asthmatic at Age 7

n (%)

Not Asthmatic at Age 7

n (%)

P-value^#

n (%)

617 (100)

95 (16)^a

494 (84)^a

Sex

0.18

 Male

338 (55)

58 (61)

265 (54)

 Female

279 (45)

37 (39)

229 (46)

Race

0.001

 White

487 (79)

63 (66)

401 (81)

 Non-White

130 (21)

32 (34)

93 (19)

Household Income at Age 7

 < 0.001

 Under $10 K

49 (8)

12 (13)

30 (6)

 $10 K to under $20 K

44 (7)

11 (12)

29 (6)

 $20 K to under $30 K

51 (8)

16 (17)

22 (4)

 $30 K to under $40 K

49 (8)

6 (6)

34 (7)

 $40 K to under $50 K

56 (9)

7 (7)

31 (6)

 $50 K to under $70 K

109 (18)

12 (13)

70 (14)

 $70 K to under $90 K

95 (15)

13 (14)

85 (17)

 $90 to under $110 K

76 (12)

4 (4)

78 (16)

 Over $110 K

63 (10)

13 (14)

109 (22)

 Did not respond

25 (4)

1 (1)

6 (1)

Allergic Sensitivity at Age 7

 Yes

258 (42)

31 (33)

116 (23)

0.17

 No

346 (56)

25 (26)

139 (28)

 Missing

13 (2)

39 (41)

239 (48)

M (SD)

Asthmatic

Mean

Non-Asthmatic Mean

P-value⁺

ECAT (µg/m3)

 Birth

0.40 (1.70)

0.42

0.40

0.08

 Age 7 (missing = 6)

0.36 (0.11)

0.37

0.36

0.22

 Across Childhood

0.38 (0.10)

0.40

0.38

0.06

Community Deprivation Index

 Birth (missing = 2)

0.46 (0.02)

0.52

0.45

 < 0.001

 Age 7

0.33 (0.14)

0.38

0.33

0.001

 Across Childhood

0.40 (0.14)

0.46

0.39

 < 0.001