Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Basic characteristics of patients for basic binary parameters (N=10,318).
| Binary parameter | 1-value, n (%) | 0-value, n (%) | Missing, n (%) |
| Alcohol | Yes, 103 (0.99) | No, 10,215 (99) | 0 |
| Drug | Yes, 18 (0.17) | No, 10,300 (99.83) | 0 |
| Smoking | Yes, 3437 (33.31) | No, 6881 (66.69) | 0 |
| Pregnancy | Yes, 443 (4.29) | No, 9875 (95.71) | 2515 (24.37) |
| Gender | Male, 6400 (62.03) | Female, 3918 (37.97) | 0 |
