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49480 在中国，疫情暴发早期的粗病死率较高（1月1日至10日间发病的病例，粗病死率为17.3%);随着时间推移，2月1日之后发病病例的粗病死率降至0.7%(图4)。 In China, the overall CFR was higher in the early stages of the outbreak (17.3% for cases with symptom onset from 1¬10 January) and has reduced over time to 0.7% for patients with symptom onset after 1 February (Figure 4).
49481 联合考察组注意到医疗服务水平在疫情进展过程中发生了变化. The Joint Mission noted that the standard of care has evolved over the course of the outbreak.
49482 病死率随年龄增长而增加，80岁以上者病死率最高(21.9%)。 Mortality increases with age, with the highest mortality among people over 80 years of age (CFR 21.9%).
49483 男性病死率高于女性（分别为4.7%和2.8%)。 The CFR is higher among males compared to females (4.7% vs. 2.8%).
49484 退休人员在各职业人群中病死率最高，为8.9%。无合并症的患者病死率为1. By occupation, patients who reported being retirees had the highest CFR at 8.9%.
49485 4%，有合并症的患者病死率显著增高（合并心血管疾病患者为13.2%，糖尿病为9.2%，高血压为8.4%，慢性呼吸道疾病为8.0%，癌症为7.6%)。 While patients who reported no comorbid conditions had a CFR of 1.4%, patients with comorbid conditions had much higher rates: 13.2% for those with cardiovascular disease, 9.2% for diabetes, 8.4% for hypertension, 8.0% for chronic respiratory disease, and 7.6% for cancer.
49486 疾病进程数据来自数量有限的报告住院病例（图5)。 Data on the progression of disease is available from a limited number of reported hospitalized cases (Figure 5).
49487 根据现有数据，从全国来看，从发病到实验室确诊的中位时间从2020年1月初的12天(8-18天)缩短到2月初的3天（1-7天）。 Based on available information, the median time from symptom onset to laboratory confirmation nationally decreased from 12 days (range 8-18 days) in early January to 3 days (1-7) by early February 2020,
49488 在武汉，则分别为15天（10-21天）和5天（3-9天）。 and in Wuhan from 15 days (10-21) to 5 days (3-9), respectively.
49489 这有助于更早地发现、隔离和治疗病例，以及确认、追踪密切接触者。 This has allowed for earlier case and contact identification, isolation and treatment.