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Table 2 Clinical factors related with positive or negative bacterial culture in conjunctival sac of 576 patients with cataract surgery

From: Positive bacterial culture in conjunctival sac before cataract surgery with night stay is related to diabetes mellitus

Clinical factors Culture-positive patients (n = 168) Culture-negative patients (n = 408) Univariate P value Multivariate P value
Age (years)
 Range (median) 39–99 (79.5) 33–100 (77)   
 Mean 78.8 75.9 0.002 0.010
Sex
 Male 64 (38%) 176 (43%)   
 Female 104 (62%) 232 (57%) 0.265
Hypertension
 Yes 74 (44%) 154 (38%)   
 No 94 (56%) 254 (62%) 0.160
Diabetes mellitus
 Yes 50 (30%) 84 (21%)   
 No 118 (70%) 324 (79%) 0.018 0.004
History of cancer
 Yes 29 (17%) 59 (14%)   
 No 139 (83%) 349 (86%) 0.396
History of hospital-based surgeries
 Yes 80 (48%) 110 (27%)   
 No 88 (52%) 298 (73%) 0.001 0.001
Screening for infectious diseases
 Yes 18 (11%) 33 (8%)   
 No 150 (89%) 375 (92%) 0.313
  1. Univariate analysis is done with chi-square test, except for the age (Mann-Whitney U-test). Multivariate P values are calculated by multiple regression analysis