Table 2.

Summary statistics of published hypertension treatment rate and health care worker density data (per 1000 population) by country income classification.

High-Income (n = 65)
Variable	Mean	Std. Dev.	Min	Max
Treatment Rate	38.9	18.3	11.1	82.5
Aggregate Physician and Nurse Density	11.46	3.01	3.50	18.41
Physician Density	3.03	0.92	1.37	4.91
Nurse Density	8.43	3.01	1.93	14.41
Upper-Middle-Income (n = 26)
Variable	Mean	Std. Dev.	Min	Max
Treatment Rate	35.2	20.2	10.7	79.5
Aggregate Physician and Nurse Density	4.69	3.29	1.72	12.41
Physician Density	1.86	1.36	0.29	6.42
Nurse Density	2.83	2.59	0.48	8.94
Lower-Middle-Income (n = 30)
Variable	Mean	Std. Dev.	Min	Max
Treatment Rate	30.9	16.2	3.4	69.5
Aggregate Physician and Nurse Density	3.56	2.80	1.16	12.79
Physician Density	1.36	0.98	0.30	4.26
Nurse Density	2.20	1.93	0.38	8.53
Low-Income (n = 33)
Variable	Mean	Std. Dev.	Min	Max
Treatment Rate	28.5	16.6	5.7	74.2
Aggregate Physician and Nurse Density	1.58	1.32	0.19	6.26
Physician Density	0.53	0.67	0.02	2.76
Nurse Density	1.04	0.73	0.17	3.50
Overall (n = 154)
Variable	Mean	Std. Dev.	Min	Max
Treatment Rate	34.5	18.2	3.4	82.5
Aggregate Physician and Nurse Density	6.66	5.03	0.19	18.41
Physician Density	1.97	1.39	0.02	6.42
Nurse Density	4.69	4.04	0.17	14.41