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Table 4 Distribution of histological groups by sex

From: The use of a multiple imputation method to investigate the trends in Histologic types of lung cancer in Songkhla province, Thailand, 1989–2013

  Known histology   Unknown histologya
  Male Female   Male Female
(n = 1812) (n = 747)   (n = 922) (n = 363)
Type of cancer    Type of cancer   
 Squamous cell carcinoma     Squamous cell carcinoma   
  Number 585 93   Number (95 % PI) 296 (263–309) 48 (35–61)
  Percent (95 % CI) 32.3 (30.1–34.4) 12.5 (10.1–14.8)   Percent (95 % PI) 32.1 (28.5–35.5) 13.2 (9.6–16.8)
 Adenocarcinoma     Adenocarcinoma   
  Number 908 583   Number (95 % PI) 482 (454–517) 281 (264–297)
  Percent (95 % CI) 50.1 (47.8–52.4) 78.0 (75.1–81.0)   Percent (95 % PI) 52.3 (49.3–56.1) 77.3 (72.7–81.8)
 Other specified cancer     Other specified cancer   
  Number 219 71   Number (95 % PI) 144 (111–175) 34 (20–51)
  Percent (95 % CI) 17.6 (15.0–20.2) 9.5 (6.4–12.5)   Percent (95 % PI) 15.6 (12.0–19.0) 9.5 (5.5–14.1)
  1. Columns are arranged for patients with known histology (real data), and the estimated numbers and percentages by multiple imputation for patients with unknown histology (imputed)
  2. aUnknown histology includes NSCC and true unknown histology. The distribution of the number of cases with known and unknown histology cases is not statistically significant with chi-square p-values of 0.235 and 0.968 for males and females, respectively. Those with known histology, the true number and the percentage with its 95 % CI (calculated from the standard error) are present. After 200 rounds of multiple imputation, the mean (estimated) number and the percentage of different cancer types among those with unknown histology, and 95 % PI are presented