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Table 5 Negative binomial regression results on the use of infusion during outpatient visits in the past 2 weeks

From: The role of parental health care utilization in children’s unnecessary utilization in China: evidence from Shaanxi province

  Whether or not children used infusion during outpatient visits (marginal effect reported)
  (1) Full sample (2) Age 0-5 (3) Age 6-11 (4) Age 12-18
  dy/dx S.E. 95% CI dy/dx S.E. 95% CI dy/dx S.E. 95% CI dy/dx S.E. 95% CI
Parents had outpatient visit 0.5701a 0.0518 0.4686 0.6716 0.6624a 0.0412 0.5817 0.7431 0.5447b 0.1527 0.2454 0.8441 0.3005 0.1874 −0.0668 0.6679
Per capita household expense
 Poor 0.1114 0.0713 −0.0284 0.2512 0.2073b 0.1036 0.0042 0.4104 0.1329 0.1337 −0.1291 0.3948 −0.172 0.1500 −0.4660 0.1221
 Average 0.0243 0.0734 −0.1194 0.1681 0.1086 0.1137 −0.1141 0.3314 −0.1129 0.1279 −0.3635 0.1377 −0.0308 0.1764 −0.3765 0.3150
 Rich 0.1145 0.0769 −0.0362 0.2652 0.1482 0.1089 −0.0651 0.3616 0.0696 0.1790 −0.2812 0.4204 0.1024 0.1816 −0.2535 0.4583
 Richest 0.2171a 0.0768 0.0665 0.3677 0.2940a 0.1061 0.0860 0.5020 0.4491a 0.1494 0.1564 0.7418 −0.2679a 0.1343 −0.5312 −0.0046
Children had insurance 0.0162 0.0798 −0.1402 0.1725 0.0134 0.0898 −0.1627 0.1895 0.2024 0.1986 −0.1869 0.5916     
Children’s days of illness 0.0170a 0.0059 0.0054 0.0286 0.0270a 0.0090 0.0093 0.0447 0.0129 0.0119 −0.0104 0.0363 −0.0039 0.0126 −0.0287 0.0208
Children’s height (ln) −0.3658b 0.1470 −0.6538 −0.0777 −0.3580b 0.1696 −0.6903 −0.0256 −0.2018 0.4052 −0.9959 0.5924 −3.1048a 1.0277 −5.1190 −1.0905
Children’s weight (ln) 0.1626b 0.0664 0.0324 0.2928 0.1033 0.0731 −0.0400 0.2465 0.2773 0.2061 −0.1267 0.6813 0.6444 0.4297 −0.1978 1.4866
Prenatal days of illness −0.0136b 0.0057 −0.0247 −0.0024 −0.0252a 0.0083 −0.0415 −0.0089 −0.0112 0.0126 −0.0358 0.0134 −0.0036 0.0119 −0.0268 0.0197
Parental age 0.0030a 0.0017 −0.0003 0.0063 0.0047b 0.0022 0.0004 0.0089 −0.0059 0.0044 −0.0144 0.0027 0.0001 0.0071 −0.0139 0.0141
Children’s age
 3–5 −0.0299 0.0623 −0.1520 0.0923 −0.0079 0.0695 −0.1441 0.1284         
 6–8 0.0261 0.0896 −0.1496 0.2018             
 9–11 −0.0916 0.1032 −0.2939 0.1108      −0.1808a 0.0965 −0.3698 0.0083     
 12–14 −0.0229 0.1298 −0.2774 0.2315             
 15–18 0.0245 0.1472 −0.2639 0.3130          0.2925b 0.1142 0.0687 0.5162
Gender was male 0.0431 0.0402 −0.0356 0.1219 0.0601 0.0560 −0.0496 0.1698 −0.0191 0.0822 −0.1803 0.1421 0.0962 0.1042 −0.1229 0.2857
Ethnicity was Han −0.1443 0.2482 −0.6308 0.3422 −0.0702 0.2942 −0.6468 0.5064         
Urban 0.0476 0.0455 −0.0417 0.1368 0.0418 0.0623 −0.0803 0.1639 0.0186 0.0988 −0.1751 0.2123 0.0962 0.1209 −0.1409 0.3332
Region
 Guanzhong −0.0127 0.0470 −0.1049 0.0795 −0.0106 0.0650 −0.1380 0.1167 −0.0644 0.0999 −0.2601 0.1313 −0.1179 0.1093 −0.3321 0.0963
 Shanbei −0.0184 0.0603 −0.1366 0.0999 0.0066 0.0808 −0.1517 0.1650 −0.2344b 0.0960 −0.4225 −0.0463 0.0728 0.1741 −0.2685 0.4141
Family size 0.0267 0.0179 −0.0084 0.0618 0.0394 0.0256 −0.0108 0.0897 0.0853b 0.0357 0.0152 0.1553 −0.1122b 0.0497 −0.2096 −0.0148
No. of obs. 672 391 164 115
  1. Note: aStatistically significant at the 1% level, bstatistically significant at the 5% level, astatistically significant at the 10% level; S.E. robust standard errors; marginal effects instead of the original coefficients are reported to show the marginal change of the dependent variable given a one unit change in an explanatory variable. The reference groups were: “the poorest” for “per capita household expense”; “no” for “children had insurance”; “0–2” for “children’s age”; “female” for “gender was male”; “others” for “ethnicity was Han”; “rural” for “urban”; “Shannan” for “region”