Table 3.

Descriptive statistics for variables

Variable	Number	Mean (S.D.) or %
Number of children’s outpatient visit	11,024	0.0907 (0.4173)
0	10,322	93.63
1	526	4.77
2	101	0.92
3 and more	75	0.68
Children’s infusion use (yes or no)
No	432	61.54
Yes	270	38.46
Number of children’s inpatient visit	11,024	0.0788 (0.3844)
0	10,407	94.4
1	468	4.25
2	82	0.74
3 and more	67	0.61
Parental outpatient visit
Noa	10,059	94.04
Yes	637	5.96
Parental infusion use
Noa	403	63.27
Yes	234	36.73
Parental inpatient visit
Noa	9,385	93.05
Yes	701	6.95
Parental days of illness	10696	0.9204 (3.0819)
Parental age	10696	34.15 (12.75)
Per capita household expense
Pooresta	2,208	2628 (737)
Poor	2,206	4503 (470)
Average	2,230	6291 (570)
Rich	2,186	8752 (938)
Richest	2,205	16207 (6686)
Children’s insurance
Noa	560	5.09
Yes	10,448	94.91
Children’s days of illness	11035	0.4417 (1.8273)
Children’s height (cm)	10986	125.12 (34.24)
Children’s weight (kg)	10985	32.49 (17.20)
Children’s age
0-2a	1,992	18.07
3–5	1,941	17.61
6–8	1,650	14.97
9–11	1,527	13.85
12–14	1,700	15.42
15–18	2,214	20.08
Gender
Femalea	5,153	46.7
Male	5,882	53.3
Ethnicity
Othersa	191	1.73
Han	10,842	98.27
Residential area
Rurala	6,856	62.13
Urban	4,179	37.87
Region
Shannana	4,074	36.92
Guanzhong	5,100	46.22
Shanbei	1,861	16.86
Family size	11035	4.01 (1.15)

Note: “Number” represents the number of observations of a variable

^aReference levels in the regressions; Outpatient visits and infusion in the past 2 weeks; Inpatient visits in the last year