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Table 3 Adoption of the non-pharmaceutical intervention strategy to control COVID-19 among respondents by subgroups

From: Association between supportive attitude and adoptive practice of control strategy against COVID-19 amosng college students in China: a cross-sectional study

Subgroup Percentage of adoption ARR (95%CI) P of ARR NNT (95%CI)
Sex
 Male vs. female 73.4% vs. 79.1% 5.7% (4.9–6.5%) < 0.001 18 (15–20)
 Adjusted 73.3% vs. 79.2% 5.9% (4.9–6.8%) < 0.001 17 (15–20)
Degree course   
 Undergraduate vs. postgraduate 75.3% vs. 81.6% 6.3% (5.0–7.5%) < 0.001 16 (13–20)
 Adjusted 77.1% vs. 81.6% 4.5% (2.4–6.6%) < 0.001 22 (15–42)
Primary degree
 Medicine vs. other 76.3% vs. 76.7% 0.4% (−0.5 to 1.2%) 0.408 250 (−200 to 83)
 Adjusted 74.9% vs. 76.7% 1.7% (0.8–2.7%) < 0.001 59 (37–125)
Depression score
  < 16 vs. ≥16 79.7% vs. 70.0% 9.7% (8.8–10.5%) < 0.001 10 (10–11)
 Adjusted 79.7% vs. 70.0% 9.7% (8.7–10.7%) < 0.001 10 (9–11)
Anxiety score
  < 50 vs. ≥50 76.7% vs. 48.5% 28.1% (21.8–34.5%) < 0.001 4 (3–5)
 Adjusted 76.6% vs. 48.5% 28.0% (19.7–36.3%) < 0.001 4 (3–5)
Exposure
 No vs. yes 76.8% vs. 71.3% 5.5% (3.5–7.5%) < 0.001 18 (29–13)
 Adjusted 74.2% vs. 71.3% 2.9% (0.2–5.6%) < 0.001 34 (500–18)
  1. Note: Percentage of adoption refers to the percentage of respondents who undertook all four measures (hand hygiene, use of a facemask, avoidance of gatherings, and avoidance of public places). ARR, absolute risk reduction. NNT, number needed to treat. P (two-tailed) was based on the z-ratio test. †case was adjusted by matching of the propensity score based on age, sex, degree course, primary degree, depression score, anxiety score, or exposure history