A continuación se presenta una base de datos de pacientes mujeres diagnosticadas de Anorexia nervosa y de pacientes mujeres controles.
Codificación:
Etiqueta | Variable | Valores |
G | Grupo | 0=Control; 1=Anorexia |
E | Edad | Valor en años |
M | Madre anoréxica | 0=No; 1=Sí |
A | Autovaloración negativa | 0=No; 1=Sí |
P | Perfeccionismo | 0=No; 1=Sí |
S | Padres separados | 0=No; 1=Sí |
N | Número de amigos íntimos | Valor |
O | Densidad ósea | Valor |
D | Deporte | Horas por semana |
Base de datos:
G | E | M | A | P | S | N | O | D |
0 | 21 | 0 | 0 | 1 | 0 | 3 | 0.72 | 5 |
0 | 18 | 0 | 0 | 0 | 0 | 5 | 0.71 | 2 |
0 | 18 | 0 | 1 | 1 | 0 | 2 | 0.69 | 3 |
0 | 19 | 0 | 0 | 1 | 0 | 3 | 0.74 | 7 |
0 | 23 | 0 | 1 | 0 | 0 | 3 | 0.73 | 1 |
0 | 24 | 0 | 1 | 0 | 0 | 4 | 0.71 | 3 |
0 | 17 | 0 | 0 | 0 | 1 | 2 | 0.72 | 12 |
0 | 16 | 0 | 0 | 0 | 0 | 3 | 0.75 | 10 |
0 | 19 | 0 | 0 | 0 | 0 | 2 | 0.73 | 0 |
0 | 21 | 0 | 0 | 1 | 1 | 3 | 0.72 | 3 |
0 | 20 | 1 | 0 | 0 | 0 | 2 | 0.71 | 5 |
0 | 19 | 0 | 0 | 0 | 0 | 3 | 0.69 | 6 |
0 | 23 | 0 | 0 | 1 | 0 | 1 | 0.74 | 7 |
0 | 23 | 0 | 0 | 0 | 1 | 3 | 0.73 | 8 |
0 | 24 | 0 | 1 | 0 | 0 | 4 | 0.71 | 5 |
0 | 17 | 0 | 0 | 0 | 0 | 2 | 0.72 | 10 |
0 | 20 | 0 | 0 | 0 | 0 | 3 | 0.72 | 3 |
0 | 19 | 0 | 0 | 0 | 0 | 3 | 0.71 | 4 |
0 | 21 | 0 | 0 | 0 | 1 | 4 | 0.69 | 5 |
0 | 18 | 0 | 0 | 0 | 0 | 3 | 0.74 | 6 |
0 | 23 | 0 | 0 | 0 | 0 | 5 | 0.73 | 7 |
0 | 24 | 0 | 0 | 0 | 0 | 2 | 0.72 | 8 |
0 | 17 | 0 | 0 | 0 | 0 | 1 | 0.71 | 3 |
0 | 16 | 0 | 0 | 0 | 0 | 0 | 0.69 | 4 |
0 | 24 | 0 | 0 | 0 | 1 | 1 | 0.74 | 5 |
0 | 21 | 0 | 0 | 0 | 0 | 1 | 0.71 | 6 |
0 | 23 | 0 | 0 | 0 | 1 | 2 | 0.71 | 7 |
0 | 21 | 0 | 0 | 1 | 0 | 2 | 0.72 | 8 |
0 | 18 | 0 | 0 | 0 | 1 | 3 | 0.72 | 9 |
0 | 23 | 0 | 1 | 1 | 0 | 3 | 0.71 | 4 |
0 | 22 | 0 | 0 | 0 | 1 | 4 | 0.69 | 5 |
0 | 18 | 0 | 1 | 1 | 0 | 3 | 0.74 | 6 |
0 | 16 | 1 | 0 | 0 | 0 | 5 | 0.73 | 7 |
0 | 24 | 0 | 1 | 0 | 1 | 6 | 0.70 | 8 |
0 | 22 | 0 | 0 | 1 | 0 | 1 | 0.72 | 2 |
0 | 23 | 1 | 0 | 0 | 0 | 3 | 0.71 | 3 |
0 | 24 | 0 | 1 | 0 | 0 | 4 | 0.69 | 4 |
0 | 17 | 0 | 0 | 1 | 1 | 2 | 0.74 | 5 |
0 | 16 | 0 | 0 | 0 | 0 | 2 | 0.73 | 6 |
0 | 22 | 1 | 1 | 0 | 0 | 3 | 0.71 | 7 |
0 | 21 | 0 | 0 | 1 | 1 | 2 | 0.72 | 8 |
0 | 16 | 0 | 0 | 0 | 0 | 3 | 0.71 | 3 |
0 | 23 | 0 | 1 | 0 | 0 | 4 | 0.70 | 4 |
0 | 24 | 0 | 0 | 1 | 0 | 1 | 0.74 | 5 |
0 | 19 | 0 | 0 | 0 | 1 | 4 | 0.73 | 6 |
0 | 16 | 1 | 1 | 0 | 0 | 5 | 0.71 | 7 |
0 | 24 | 0 | 0 | 0 | 0 | 3 | 0.72 | 8 |
0 | 22 | 0 | 0 | 0 | 0 | 3 | 0.75 | 9 |
0 | 23 | 0 | 0 | 1 | 0 | 0 | 0.73 | 4 |
0 | 22 | 0 | 0 | 0 | 0 | 3 | 0.68 | 5 |
1 | 17 | 0 | 1 | 1 | 1 | 0 | 0.64 | 1 |
1 | 16 | 0 | 0 | 1 | 0 | 2 | 0.67 | 4 |
1 | 19 | 1 | 1 | 1 | 0 | 1 | 0.62 | 3 |
1 | 21 | 1 | 1 | 1 | 1 | 0 | 0.60 | 2 |
1 | 18 | 0 | 1 | 1 | 0 | 1 | 0.63 | 1 |
1 | 23 | 0 | 1 | 1 | 0 | 1 | 0.62 | 0 |
1 | 24 | 0 | 1 | 1 | 1 | 2 | 0.67 | 0 |
1 | 17 | 0 | 1 | 1 | 0 | 3 | 0.70 | 0 |
1 | 16 | 0 | 1 | 1 | 0 | 2 | 0.73 | 0 |
1 | 24 | 0 | 1 | 1 | 1 | 3 | 0.65 | 0 |
1 | 21 | 0 | 1 | 0 | 0 | 1 | 0.61 | 2 |
1 | 23 | 0 | 1 | 0 | 0 | 1 | 0.63 | 3 |
1 | 21 | 0 | 0 | 1 | 1 | 2 | 0.64 | 1 |
1 | 18 | 0 | 0 | 1 | 0 | 2 | 0.67 | 2 |
1 | 23 | 0 | 1 | 0 | 0 | 3 | 0.73 | 3 |
1 | 22 | 0 | 1 | 1 | 1 | 3 | 0.60 | 4 |
1 | 18 | 0 | 0 | 1 | 0 | 0 | 0.63 | 2 |
1 | 16 | 1 | 1 | 1 | 0 | 3 | 0.62 | 1 |
1 | 24 | 0 | 1 | 1 | 1 | 5 | 0.67 | 3 |
1 | 22 | 0 | 1 | 1 | 0 | 2 | 0.70 | 2 |
1 | 23 | 1 | 1 | 0 | 0 | 1 | 0.73 | 4 |
1 | 24 | 0 | 1 | 1 | 1 | 0 | 0.65 | 3 |
1 | 17 | 0 | 0 | 1 | 0 | 1 | 0.64 | 1 |
1 | 16 | 0 | 1 | 1 | 0 | 1 | 0.67 | 0 |
1 | 22 | 1 | 1 | 1 | 0 | 2 | 0.62 | 0 |
1 | 22 | 0 | 1 | 0 | 1 | 2 | 0.74 | 2 |
1 | 23 | 0 | 1 | 0 | 0 | 3 | 0.63 | 1 |
1 | 24 | 1 | 0 | 1 | 0 | 3 | 0.62 | 4 |
1 | 17 | 1 | 0 | 1 | 1 | 0 | 0.67 | 2 |
1 | 16 | 0 | 1 | 1 | 0 | 1 | 0.64 | 0 |
1 | 22 | 1 | 1 | 1 | 0 | 1 | 0.67 | 0 |
1 | 21 | 0 | 1 | 1 | 1 | 0 | 0.62 | 1 |
1 | 20 | 1 | 1 | 1 | 0 | 0 | 0.60 | 0 |
1 | 23 | 0 | 1 | 1 | 0 | 0 | 0.63 | 0 |
1 | 24 | 0 | 1 | 0 | 1 | 0 | 0.62 | 0 |
1 | 24 | 1 | 1 | 1 | 0 | 0 | 0.67 | 0 |
1 | 21 | 0 | 0 | 0 | 0 | 2 | 0.70 | 0 |
1 | 24 | 1 | 1 | 1 | 1 | 1 | 0.64 | 0 |
1 | 23 | 1 | 0 | 1 | 0 | 1 | 0.67 | 0 |
1 | 23 | 1 | 1 | 1 | 0 | 1 | 0.62 | 0 |
1 | 22 | 0 | 1 | 0 | 0 | 4 | 0.60 | 2 |
1 | 17 | 0 | 1 | 1 | 0 | 3 | 0.63 | 1 |
1 | 20 | 1 | 0 | 1 | 0 | 2 | 0.62 | 4 |
1 | 19 | 0 | 1 | 1 | 1 | 1 | 0.62 | 2 |
1 | 21 | 0 | 1 | 0 | 0 | 1 | 0.70 | 0 |
1 | 18 | 1 | 1 | 1 | 0 | 1 | 0.73 | 0 |
1 | 23 | 0 | 0 | 0 | 0 | 2 | 0.65 | 1 |
1 | 24 | 0 | 1 | 1 | 0 | 2 | 0.75 | 0 |
1 | 24 | 0 | 0 | 0 | 0 | 2 | 0.63 | 0 |
1 | 17 | 0 | 1 | 0 | 0 | 0 | 0.64 | 0 |
Contestar a las siguientes preguntas:
- Hacer una Estadística descriptiva de la Densidad ósea en el grupo Control y en el grupo de pacientes con Anorexia nervosa.
- Calcular la correlación de Pearson entre las variables Número de amigos íntimos, Densidad ósea y Deporte.
- Buscar factores de riesgo y factores de protección para la Anorexia nervosa. (Una advertencia: Al aplicar Regresión logística con el software G-Stat 2.0 debéis especificar en Opciones cuál es el código de ocurrencia: en nuestro caso es 1, porque los casos los hemos codificado con un 1. El programa adopta, por defecto, como código de ocurrencia el valor asignado a la variable respuesta del primer individuo de la muestra. Como en nuestro caso es un control adopta como código de ocurrencia el 0, como si hubiésemos asignado 0 a los casos y 1 a los controles, y no es así)
- Comprobar, con la técnica adecuada al caso, si hay diferencia estadísticamente significativa entre el nivel de densidad ósea de las pacientes con Anorexia respecto a las mujeres control.