Figure 5 is a bar graph that shows the distribution of study size by intervention group (SCIT-SLIT-SLIT vs. SCIT). The majority of the SCIT studies had 50 subjects or fewer (23 studies enrolled less than 30 patients and 31 studies enrolled 30–50 patients patients), whereas 60 percent of SLIT studies (36 studies) enrolled at least 50 subjects (21 studies enrolled 50–100 patients and 15 studies enrolled more than 100 patients), only 6 studies in the SLIT intervention enrolled less than 30 patients. 5 of the studies in the SLIT vs SCIT intervention enrolled 30–50 patients.

Figure 5Count of studies by number of enrolled participants

SCIT = subutaneous immunotherapy; SLIT = sublingual immunotherapy.

From: Results

Cover of Allergen-Specific Immunotherapy for the Treatment of Allergic Rhinoconjunctivitis and/or Asthma: Comparative Effectiveness Review
Allergen-Specific Immunotherapy for the Treatment of Allergic Rhinoconjunctivitis and/or Asthma: Comparative Effectiveness Review [Internet].
Comparative Effectiveness Reviews, No. 111.
Lin SY, Erekosima N, Suarez-Cuervo C, et al.

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