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Table 4 Subgroup analyses of overall survival

From: Prognostic significance of pretreatment controlling nutritional status score in urological cancers: a systematic review and meta‐analysis

Subgroup No. of studies HR (95% CI) P Heterogeneity Model
I2 (%) Ph
Cancer type
 RCC 3 3.05 (2.07–4.50) < 0.001 0.0 0.933 Fixed
 UC 6 1.58 (1.32–1.89) < 0.001 7.3 0.370 Fixed
Cancer stage
 Non-metastatic 6 2.14 (1.45–3.15) < 0.001 58.1 0.036 Random
 Metastatic 1 1.57 (1.06–2.31) 0.023
 Mixed 2 1.69 (1.29–2.22) < 0.001 42.2 0.189 Fixed
Treatment
 Surgery 8 2.02 (1.53–2.68) < 0.001 50.6 0.048 Random
 Mixed 1 1.57 (1.06–2.31) 0.023
Sample size
 > 400 4 1.73 (1.40–2.12) < 0.001 47.9 0.124 Fixed
 < 400 5 2.02 (1.33–3.07) 0.001 53.9 0.070 Random
Cuf-off
 3 4 2.31 (1.44–3.72) 0.001 54.0 0.089 Random
 ≤ 2 5 1.68 (1.38–2.05) < 0.001 45.0 0.122 Fixed
Population
 Asian 8 1.73 (1.46–2.04) < 0.001 44.9 0.08 Fixed
 African 1 2.81 (1.44–5.50) 0.003