From: Adaptive sample size determination for the development of clinical prediction models
Predictor | Statistics | Result | Missing values (%) |
---|---|---|---|
Ovarian cancer case study | |||
Age (years) | Mean (range) | 48 (8-96) | 0 |
Maximum lesion diameter (mm) | Mean (range) | 82 (8-760) | 0 |
Maximum diameter of solid part (mm) | Mean (range) | 28 (0-380) | 0 |
Number of papillations (0-4) | Mean (range) | 0.4 (0-4) | 0 |
Acoustic shadows (no/yes) | N yes (%) | 743 (13%) | 0 |
Ascites (no/yes) | N yes (%) | 720 (12%) | 0 |
Bilateral masses (no/yes) | N yes (%) | 1141 (19%) | 0 |
Coronary artery disease case study | |||
Age (years) | Mean (range) | 64 (18-89) | 0 |
HDL cholesterol (mg/dL) | Mean (range) | 56 (15-188) | 312 (6.4%) |
LDL cholesterol (mg/dL) | Mean (range) | 128 (21-341) | 310 (6.3%) |
Logarithm of fibrinogen (log(mg/dL)) | Mean (range) | 5.9 (4.6-7.3) | 119 (4.1%) |
Sex (male/female) | N male (%) | 3028 (62%) | 0 |
Chest pain (no/yes) | N yes (%) | 2987 (61%) | 0 |
Diabetes mellitus (no/yes) | N yes (% | 757 (16%) | 0 |
Hypertension (no/yes) | N yes (%) | 3730 (76%) | 0 |
Dyslipidaemia (no/yes) | N yes (%) | 3115 (64%) | 0 |
c-Reactive protein > 1.00 mg/dL (no/yes) | N yes (%) | 681 (14%) | 96 (2%) |
Smoking status | 640 (13%) | ||
Never | N (%) | 2304 (54%) | |
Former | N (%) | 1088 (26%) | |
Current | N (%) | 856 (20%) |