表 1.
县级社会经济变量的集群特征
Characterization of county-level socioeconomic variables by cluster
| Variables Mean(SD) |
Cluster1 Mean(SD) |
Cluster2 Mean(SD) |
Cluster3 Mean(SD) |
Cluster4 Mean(SD) |
cluster5 Mean(SD) |
| Note: All SES variables with percentages represent the percentage of persons living within a county with that characteristics calculated by the Census American Community Survey (ACS) 2011-2015; Median Family Income and Median Household income are in dollars; ANOVA P < 0.001 for all variables. SD: Standard deviation. Mean: Mean value. | |||||
| Education | |||||
| % < 9th grade | 654(191) | 455(264) | 461(223) | 539(308) | 1182 (362) |
| % < Highschool | 1229(290) | 1164(494) | 1158 (390) | 1417 (620) | 2212 (389) |
| % at least bachelors | 4152.95(659) | 2981.58 (770) | 3043.85(897) | 2314.20(918) | 2426.28 (615) |
| Poverty | |||||
| % Families below poverty | 802(215) | 1292(571) | 1137 (398) | 1170 (546) | 1595 (302) |
| % Persons below poverty | 1133(259) | 1736(644) | 1613 (500) | 1537 (638) | 1999 (345) |
| % Persons < 150% poverty | 1878 (396) | 2727 (863) | 2553 (652) | 2475 (909) | 3189 (409) |
| % Persons < 200% poverty | 2616 (524) | 3711 (969) | 3458 (763) | 3400 (1087) | 4253 (437) |
| % Crowding | 549 (238) | 359 (259) | 293 (169) | 209 (129) | 893 (329) |
| Income | |||||
| % Unemployed | 787 (107) | 856 (274) | 878 (238) | 831 (240) | 1188 (204) |
| % Median % family ($) | 9202.27 (1383) | 6268.48 (1399) | 6795.89 (1181) | 6592.94 (1768) | 5918.16 (618) |
| % Median household ($) | 7766.80 (1101) | 5199.81 (1292) | 5468.24 (1013) | 5361.33 (1514) | 5213.91 (646) |
| Immigration | |||||
| % Foreign born | 2709 (647) | 939 (590) | 1014 (578) | 606 (524) | 2563 (935) |
| % Move to US(5+ years) | 102 (32.9) | 90.8 (51.5) | 54.6 (29.9) | 29.5 (19.4) | 59.1 (15.9) |
| % Move to US(1+ years) | 103 (33.2) | 90.7 (50.2) | 54.5 (30.1) | 29.6 (20.0) | 58.7 (15.5) |
| % Language isolation | 840 (232) | 346 (270) | 308 (182) | 224 (228) | 1006 (417) |
| Relocation | |||||
| Age 5+ years | |||||
| % No moving | 8656.87 (258) | 8258.94 (363) | 8295.01 (290) | 8879.15 (224) | 8622.22 (167) |
| % Move within county | 811 (214) | 912 (206) | 1026 (173) | 594 (150) | 981 (115) |
| % Move within state | 247 (96.3) | 285 (163) | 411 (164) | 330 (149) | 229 (119) |
| % Move within country | 183(67.9) | 453(212) | 214 (81.7) | 167(80.9) | 108 (27.2) |
| Age 1+ years | |||||
| % No moving | 8636.56 (255) | 8224.92 (364) | 8264.30(283) | 8848.60 (230) | 8590.90 (176) |
| % Move within county | 827(217) | 936(208) | 1051 (174) | 615(157) | 1010 (119) |
| % Move within state | 248(96.0) | 288(165) | 414(164) | 336(151) | 231 (122) |
| % Move within country | 185(68.3) | 460(215) | 217 (82.5) | 170(82.7) | 109 |