Department of Public Health & Community Medicine, Tufts University School of Medicine, Boston, MA, USA.
Department of Medicine, Children's Hospital, Boston, MA, USA.
Ann Med. 2021 Dec;53(1):1419-1428. doi: 10.1080/07853890.2021.1957998.
Previous studies suggested that almost one-third of U.S. adults did not plan to get a COVID-19 vaccine once it is available to them. The purpose of this study was to examine changes in vaccine intentions and attitudes by sociodemographic characteristics and geographic areas, factors associated with vaccination intent, and reasons for non-vaccination among a nationally representative sample of U.S. adults.
Data from six waves of the Household Pulse Survey (6 January - 29 March 2021) were analyzed. Differences between January and March were assessed using -tests. Factors associated with vaccination intent were examined in multivariable logistic regression models.
From early January to late March, vaccination receipt of ≥1 dose of the COVID-19 vaccine or intention to definitely get vaccinated increased from 54.7 to 72.3%; however, disparities in vaccination intent continued to exist by age group, race/ethnic groups, and socioeconomic characteristics. Vaccine receipt and the intent were the lowest for region 4 (southeastern U.S.) throughout this period. Adults who had a previous COVID-19 diagnosis or were unsure if they have had COVID-19 were less likely to intend to get vaccinated [prevalence ratio = 0.92 (95%CI: 0.90-0.93) and 0.80 (95%CI: 0.74-0.85), respectively]. The belief that a vaccine is not needed increased by more than five percentage points from early January to late March.
Intent to definitely get a COVID-19 vaccine increased by almost 18 percentage points from early January to late March; however, younger adults, adults who are non-Hispanic Black or other races, adults of lower socioeconomic status, and adults living in the southeastern U.S. region (Region 4) continue to have higher coverage gaps and levels of vaccine hesitancy. Emphasizing the importance of vaccination among all populations, and removing barriers to vaccines, may lead to a reduction of COVID-19 incidence and bring an end to the pandemic.KEY MESSAGESReceipt of ≥1 dose of the COVID-19 vaccine and intent to probably or definitely get vaccinated increased from early January to late March; however, disparities in vaccine intent continued to exist by age group, race/ethnic groups, and socioeconomic characteristics.Vaccine receipt and the intent were the lowest for region 4 (southeastern U.S.) compared to other regions during this period.Adults who had a previous COVID-19 diagnosis or were unsure if they have had COVID-19 were less likely to intend to get vaccinated; overall, the belief that a vaccine is not needed to be increased by more than 5% points from early January to late March.[Formula: see text].
先前的研究表明,近三分之一的美国成年人表示一旦有新冠疫苗可用,他们不打算接种。本研究的目的是调查在具有全国代表性的美国成年人样本中,按社会人口特征和地理区域划分,疫苗接种意愿和态度的变化、与接种意愿相关的因素,以及未接种疫苗的原因。
分析了六轮“家庭脉搏调查”(2021 年 1 月 6 日至 3 月 29 日)的数据。使用 -检验评估 1 月和 3 月之间的差异。在多变量逻辑回归模型中检查与接种意愿相关的因素。
从 1 月初到 3 月底,≥1 剂 COVID-19 疫苗的接种率或打算肯定接种疫苗的比例从 54.7%增加到 72.3%;然而,在年龄组、种族/族裔和社会经济特征方面,接种意愿的差异仍然存在。在整个时期,第 4 区(美国东南部)的疫苗接种率和接种意愿最低。有过 COVID-19 既往诊断或不确定是否感染过 COVID-19 的成年人不太可能打算接种疫苗[流行率比=0.92(95%CI:0.90-0.93)和 0.80(95%CI:0.74-0.85)]。从 1 月初到 3 月底,认为不需要疫苗的比例增加了 5 个多百分点。
从 1 月初到 3 月底,打算肯定接种 COVID-19 疫苗的比例增加了近 18 个百分点;然而,年轻成年人、非西班牙裔黑人或其他种族的成年人、社会经济地位较低的成年人以及美国东南部地区(第 4 区)的成年人继续存在更高的覆盖率差距和疫苗犹豫水平。强调所有人群接种疫苗的重要性,消除疫苗接种障碍,可能会降低 COVID-19 的发病率,并结束大流行。
从 1 月初到 3 月底,≥1 剂 COVID-19 疫苗的接种率和打算可能或肯定接种疫苗的比例有所增加;然而,在年龄组、种族/族裔和社会经济特征方面,疫苗接种意愿的差异仍然存在。
与其他地区相比,第 4 区(美国东南部)在整个时期内的疫苗接种率和接种意愿最低。
有过 COVID-19 既往诊断或不确定是否感染过 COVID-19 的成年人不太可能打算接种疫苗;总的来说,从 1 月初到 3 月底,认为不需要疫苗的比例增加了 5 个多百分点。