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Table 4 Statistical methods

From: A survey of statistics in three UK general practice journal

  BMJ BJGP Family Practice Overall
Methods n (%) n (%) n (%) n (%)
No statistics or simple summaries 23 (29.1) 47 (32.4) 33 (40.7) 103 (33.8)
Chi-squared tests 13 (16.5) 40 (27.6) 19 (23.5) 72 (23.6)
t-tests 7 (8.9) 22 (15.2) 17 (21.0) 46 (15.1)
Logistic regression 14 (17.7) 19 (13.1) 11 (13.6) 44 (14.4)
Nonparametric 11 (13.9) 24 (16.6) 4 (4.9) 39 (12.8)
Odds ratios/relative risks 11 (13.9) 13 (9.0) 14 (17.3) 38 (12.5)
Regression 9 (11.4) 10 (6.9) 11 (13.6) 30 (9.8)
Sample size/power 6 (7.6) 17 (11.7) 3 (3.7) 26 (8.5)
Summaries with CIs 9 (11.4) 3 (2.1) 6 (7.4) 18 (5.9)
Kappa 2 (2.5) 9 (6.2) 4 (4.9) 15 (4.9)
Sensitivity/specificity 4 (5.1) 10 (6.9) 1 (1.2) 15 (4.9)
Pearson correlation 2 (2.5) 6 (4.1) 6 (7.4) 14 (4.6)
Multiple comparisons 2 (2.5) 4 (2.8) 4 (4.9) 10 (3.3)
ANOVA 5 (6.3) 4 (2.8)    9 (3.0)
Mantel-Haenszel 1 (1.3) 5 (3.4) 2 (2.5) 8 (2.6)
Random effects models 4 (5.1) 4 (2.8)    8 (2.6)
Cronbach's alpha 1 (1.3) 5 (3.4) 1 (1.2) 7 (2.3)
Fisher's exact test    7 (4.8)    7 (2.3)
Likelihood ratio 3 (3.8) 3 (2.1)    6 (2.0)
Survival analysis 6 (7.6)      6 (2.0)
Other 4 (5.1) 37 (25.2) 10 (12.3) 51 (16.7)
Total articles 79   145   81   305  
  1. Notes
  2. CIs = confidence intervals.
  3. ANOVA = analysis of variance.