Table 2 Median years of education and median difference in education (by quantile regression) comparing no hormone therapy use to systemic and local hormone therapy shown separately for each age group in the singleton population.

From: Postmenopausal hormone therapy and mortality before and after the Women’s Health Initiative study

 

Median (IQR)

Median difference (95% CI)

 

2000

2005

2000

2005

Age 51–55

No HT

13 (8–13)

 

0 (ref)

 

Systemic HT

13 (8–13)

 

0 (− 0.3; 0.3)

 

Local HT

13 (8–13)

 

0 (− 0.6; 0.6)

 

Age 56–60

No HT

11 (7–13)

13 (8–13)

0 (ref)

0 (ref)

Systemic HT

12 (7–13)

13 (8–13)

1.5 (0.8; 2.2)

0 (− 0.3; 0.3)

Local HT

12 (7–13)

13 (9–13)

1.5 (0.3; 2.7)

0 (− 0.3; 0.3)

Age 61–65

No HT

8 (7–13)

11 (7–13)

0 (ref)

0 (ref)

Systemic HT

11 (7–13)

12 (7–13)

3 (2.1; 3.9)

1 (0.3; 1.7)

Local HT

10 (7–13)

13 (7–13)

2 (0.7; 3.3)

2 (1.3; 2.7)

Age 66–70

No HT

7 (7–13)

9 (7–13)

0 (ref)

0 (ref)

Systemic HT

9 (7–13)

12 (7–13)

2 (1.5; 2.5)

3 (1.7; 4.3)

Local HT

10 (7–13)

10 (7–13)

3 (2.3 ; 3.7)

1 (− 0.1; 2.1)

Age 71–75

No HT

7 (7–13)

7 (7–13)

0 (ref)

0 (ref)

Systemic HT

9 (7–13)

9 (7–13)

2 (1.9; 2.1)

2 (1.3; 2.7)

Local HT

7 (7–13)

9 (7–13)

0 (− 0.1; 0.1)

2 (1.5; 2.5)

Age 76–80

No HT

7 (7–12)

7 (7–13)

0 (ref)

0 (ref)

Systemic HT

9 (7–13)

9 (7–13)

2 (1.9; 2.1)

2 (1.8; 2.2)

Local HT

7 (7–12)

7 (7–13)

0 (− 0.1; 0.1)

0 (− 0.1; 0.1)

Age 81–85

No HT

 

7 (7–13)

 

0 (ref)

Systemic HT

 

10 (7–13)

 

3 (2.9; 3.1)

Local HT

 

7 (7–13)

 

0 (− 0.1; 0.1)

  1. HT, hormone therapy; IQR, interquartile range; CI, confidence interval.
  2. Note. Due to data being restricted to include those with date of birth before January 1st 1950, there is no data for those aged 51–55 in 2005.