Table 1

Summary statistics of the whole sample and stratified by insurance status
Variables Total Combined insurance coverage Public insurance coverage Private insurance coverage
>50% =<50% >50% =<50% >50% =<50%
Area
Whole cohort 2424 2349 75 2347 77 257 2167
Northern area 1001 969 32 968 33 101 900
Central area 702 678 24 677 25 74 628
Southern area 444 428 16 428 16 48 396
Eastern area 103 101 2 101 2 10 93
Offshore islands 174 173 1 173 1 24 150
p-value (<0.001) (<0.001) (0.688)
Household size 3.957 4.014 2.173 4.140 2.220 4.595 3.882
Mean (sd) (1.711) (1.706) (0.381) (1.769) (0.476) (2.042) (1.651)
P- value (<0.001) (<0.001) (<0.001)
Household income (Percentage)
Less than 135,000 23.47 23.41 25.33 23.43 24.68 18.68 24.04
135,000-225,000 18.44 18.18 26.67 18.19 25.97 6.61 19.84
225,000-450,000 25.04 25.03 25.33 25.05 24.68 22.18 25.38
450,000-675,000 18.56 18.82 10.67 18.75 12.99 25.68 17.72
More than 6750,000 14.48 14.56 12.00 14.57 11.69 26.85 13.01
P- value (0.207) (0.372) (<0.001)
Household expense (Percentage)
Less than 45,000 11.06 11.15 8.00 11.16 7.79 5.45 11.72
45,000-135,000 25.41 25.37 26.67 25.39 25.97 15.18 26.63
135,000-225,000 36.63 36.82 30.67 36.77 32.47 22.18 38.35
225,000-450,000 18.56 18.48 21.33 18.49 20.78 33.46 16.80
More than 450,000 8.33 8.17 13.33 8.18 12.99 23.74 6.51
P- value (0.393) (0.488) (<0.001)
Number of inpatient treatment (Percentage)
None 69.22 69.60 57.33 69.58 58.44 78.21 68.16
One 20.50 20.43 22.67 20.45 22.08 21.79 20.35
Two 7.47 7.54 5.33 7.54 5.19 0 8.35
Three 1.49 1.53 0 1.53 0 0 1.66
Four 0.08 0.09 0 0.09 0 0 0.09
Five or more 1.24 0.81 14.67 0.81 14.29 0 1.38
P-value (<0.001) (<0.001) (<0.001)
Presence of chronic disease (Percentage)
Yes 36.63 36.61 37.33 36.64 36.36 33.07 37.06
No 63.37 63.39 62.67 63.36 63.64 66.93 62.94
P-value (0.995) (0.944) (0.236)

Fang et al.

Fang et al. BMC Health Services Research 2012 12:442   doi:10.1186/1472-6963-12-442

Open Data