Terrell-Perica S M, Effler P V, Houck P M, Lee L, Crosthwaite G H
National Immunization Program, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Am J Prev Med. 2001 Nov;21(4):256-60. doi: 10.1016/s0749-3797(01)00372-5.
The effect of a combined influenza and pneumococcal immunization reminder letter on increasing influenza and pneumococcal immunization rates, and the timeliness of receiving immunizations after receipt of a reminder letter, have not been examined. This study addresses these issues using a sample of new Medicare beneficiaries residing in Hawaii.
Newly enrolled Medicare beneficiaries in Hawaii from 25 September 1995 through 31 August 1996 were randomly assigned to one of three groups: Group 1, no letter (n=2144); Group 2, influenza immunization reminder letter only (n=2213); or Group 3, pneumococcal and influenza immunization reminder letter (n=2171). Health Care Financing Administration claims data were compared among groups.
In Group 3, the influenza immunization rate increased 3.8 percentage points (n=87; p=0.017) compared with Group 1. The Group 3 pneumococcal immunization rate increased 3.5 percentage points (n=78; p<0.001) compared to Group 1 and 4.0 percentage points (n=86; p<0.001) compared to Group 2. Sixty-six beneficiaries in Group 3 received simultaneous pneumococcal and influenza immunizations, a significant difference compared to Group 1 or Group 2. Increases in immunizations were observed immediately following the reminder letters and the effect persisted for 5 to 7 weeks.
The combination letter increased both influenza and pneumococcal immunization rates and the simultaneous administration of immunizations without detrimental effect to influenza immunization rates. A combined reminder letter is inexpensive and recommended as part of a multicomponent campaign for adult immunization.
流感和肺炎球菌联合免疫提醒信对提高流感和肺炎球菌免疫接种率以及收到提醒信后接种疫苗的及时性的影响尚未得到研究。本研究使用居住在夏威夷的新医疗保险受益人的样本解决了这些问题。
1995年9月25日至1996年8月31日新加入夏威夷医疗保险的受益人被随机分为三组之一：第1组，无信件（n = 2144）；第2组，仅流感免疫提醒信（n = 2213）；或第3组，肺炎球菌和流感免疫提醒信（n = 2171）。对各组的医疗保健财务管理局索赔数据进行了比较。
与第1组相比，第3组的流感免疫接种率提高了3.8个百分点（n = 87；p = 0.017）。与第1组相比，第3组的肺炎球菌免疫接种率提高了3.5个百分点（n = 78；p < 0.001），与第2组相比提高了4.0个百分点（n = 86；p < 0.001）。第3组中有66名受益人同时接种了肺炎球菌和流感疫苗，与第1组或第2组相比有显著差异。在提醒信发出后立即观察到免疫接种增加，且效果持续了5至7周。
联合信件提高了流感和肺炎球菌的免疫接种率，并且同时接种疫苗对流感免疫接种率没有不利影响。联合提醒信成本低廉，建议作为成人免疫多组分活动的一部分。
