Price H C, Henley G
Practitioner. 1976 Mar;216(1293):341-6.
A double-blind trial in two randomly structured groups of boarders (44 girls and 66 boys) aged 7 to 13 years was undertaken in two Bristrol schools. Dosage was 1 ml a day of fluid (antigen or placebo) orally for the first four weeks of the autumn term, absenteeism being the main parameter measured, using a structured recording code. There was a highly significant difference in the number of days lost from upper respiratory-tract infection in the treated as opposed to the placebo group (x2 = 40-00 P less than 0-001 (v = 1). The number of colds was also significantly lower in the treated group (x2 = 8-05 P less than 0-005 (V less than i)).
在布里斯托尔的两所学校，对两组年龄在7至13岁、随机分组的寄宿生（44名女孩和66名男孩）进行了一项双盲试验。在秋季学期的前四周，每天口服1毫升液体（抗原或安慰剂），使用结构化记录代码，将缺勤率作为主要测量参数。与安慰剂组相比，治疗组因上呼吸道感染而缺勤的天数有极显著差异（x2 = 40.00，P小于0.001（v = 1））。治疗组的感冒次数也显著较低（x2 = 8.05，P小于0.005（V小于1））。
