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Table 1 Characteristics of entire cohort at baseline (discharge from newborn hospitalization) and end of study period

From: Residential movement patterns of families of young children with chronic conditions in Ontario, Canada: a population-based cohort study

 

Single CCC N = 15,207

Multiple CCCs N = 3,600

LBW N = 33,206

A/RW N = 57,137

Healthy controls N = 489,566

P-value

Birth

End of period

Birth

End of period

Birth

End of period

Birth

End of period

Birth

End of period

Gender, # (%)

Female

6527 (42.9%)

1602 (44.5%)

17,584 (52.9%)

20,920 (36.6%)

246,923 (50.4%)

<.001

Neighbourhood Income Quintile, # (%)

Quintile 1 (lowest)

3751 (24.7%)

3211 (21.1%)

929 (25.8%)

800 (22.2%)

8564 (25.8%)

7446 (22.4%)

13,405 (23.5%)

11,752 (20.6%)

113,409 (23.2%)

93,276 (19.1%)

<.001**

Quintile 2

3184 (20.9%)

2932 (19.3%)

749 (20.8%)

650 (18.1%)

7111 (21.4%)

6553 (19.7%)

11,555 (20.2%)

10,714 (18.8%)

98,180 (20.1%)

90,080 (18.4%)

<.001**

Quintile 3

2982 (19.6%)

3014 (19.8%)

755 (21.0%)

769 (21.4%)

6585 (19.8%)

6631 (20.0%)

11,837 (20.7%)

11,870 (20.8%)

98,004 (20.0%)

99,001 (20.2%)

<.001**

Quintile 4

2869 (18.9%)

3170 (20.9%)

618 (17.2%)

716 (19.9%)

6092 (18.4%)

6736 (20.3%)

11,246 (19.7%)

12,309 (21.5%)

97,584 (19.9%)

109,270 (22.3%)

<.001**

Quintile 5 (highest)

2421 (15.9%)

2880 (18.9%)

549 (15.2%)

665 (18.5%)

4854 (14.6%)

5840 (17.6%)

9094 (15.9%)

10,492 (18.4%)

82,389 (16.8%)

97,939 (20.0%)

<.001**

# of moves, median (IQR)

--

1 (0,1)

--

1 (0,1)

--

1 (0,1)

--

0 (0,1)

--

1 (0,1)

<.001

Rurality (RIO)*, median (IQR)

6 (4–15)

6 (4–19)

6 (4–13)

6 (4–19)

5 (4–11)

6 (4–12)

6 (4–11)

6 (4–12)

6 (4–14)

6 (4–19)

<.001**

#, % > 80 km from specialized hospital

3,225 (21.2%)

3,459 (22.8%)

723 (20.1%)

759 (21.1%)

6,126 (18.4%)

6,677 (20.1%)

10,093 (17.7%)

10,691 (18.7%)

98,511 (20.1%)

106,199 (21.7%)

<.001**

Distance (in km) between residence and specialized hospital, median (IQR)

30 (13, 64)

32 (15, 68)

29 (12, 61)

31 (15, 64)

26 (13, 55)

29 (15, 60)

28 (15, 54)

30 (16, 56)

28 (13, 60)

30 (15, 65)

<.001

  1. *Rurality Index of Ontario (RIO) [26], a continuous measure of rurality formulated for health policy planning and research [27, 28] ranging from 0 (least rural) to 100 (most rural) using Census 2006. The RIO consists of both distinct generic components of rurality such as population dispersion, remoteness and social factors as well as components specific to health such as distance to referral centers and ratios of population to family. physicians. CCC complex chronic condition(s), LBW low birth weight, A/RW asthma/recurrent wheeze. ** P < .001 both for comparisons at birth and comparisons at end of study period. All P-values indicate tests of differences across groups.