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Table 3 Populations covered by the six travel zones of the three tiers of healthcare institutions

From: An integrated analysis of spatial access to the three-tier healthcare delivery system in China: a case study of Hainan Island

Travel zone Tier 1 Tier 2 Tier 3
0–15 Minutes 7,000,677 (75.33%) 4,701,942 (50.59%) 3,442,280 (37.04%)
15–30 Minutes 1,503,997 (16.18%) 2,809,747 (30.23%) 2,254,765 (24.26%)
30–60 Minutes 585,316 (6.30%) 1,458,979 (15.70%) 2,665,765 (28.68%)
60–90 Minutes 124,836 (1.34%) 230,756 (2.48%) 652,004 (7.02%)
90–120 Minutes 49,765 (0.54%) 66,590 (0.72%) 194,815 (2.10%)
> 120 Minutes 29,260 (0.31%) 25,836 (0.28%) 84,223 (0.91%)
Total 9,293,851 (100%) 9,293,851 (100%) 9,293,851 (100%)
  1. Note: Tier 1 healthcare institutions are clinics in urban areas and village clinics in rural areas. Tier 2 healthcare institutions are CHCs in urban areas and THCs in rural areas. Tier 3 healthcare institutions are hospitals
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