Table 2.
Demographic characteristics (age, body weight, sex) for feline populations that were diagnosed at study entry as apparently healthy or preclinical HCM/HOCM
| Study populations | Apparently healthy cats (n = 722) | HCM/HOCM (n = 1008) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Age, median (IQR), years | Body weight, median (IQR), kg | Sex | Age, median (IQR), years | Body weight, median (IQR), kg | Sex | P value | |||
| M | F | M | F | Apparently healthy versus HCM/HOCM cats | |||||
| Overall mortality | |||||||||
| Noncardiovascular | 9.0 (5.2‐12.6) | 4.2 (3.4‐5.1) | 109 | 121 | 9.8 (6.0‐12.2) | 5.0 (4.0‐5.9) | 210 | 94 | .48 (age) |
| <0.0001 (body weight) | |||||||||
| Cardiovascular | 10 (6.8‐11.0) | 4.8 (3.9‐7.2) | 5 | 2 | 6.4 (3.0‐9.6) | 5.0 (4.2‐6.1) | 214 | 67 | .03 (age) |
| .83 (body weight) | |||||||||
| All causesb | 9.0 (5.0‐12.2) | 4.3 (3.5‐5.3) | 138 | 148 | 8.0 (4.0‐11.0) | 5.0 (4.1‐6.0) | 475 | 178 | .006 (age) |
| <.0001 (body weight) | |||||||||
| Cause‐specific mortality | |||||||||
| Cancer | 10.5 (7.0‐13.7) | 4.6 (3.9‐5.7) | 53 | 52 | 9.0 (6.0‐12.6) | 4.9 (4.1‐5.9) | 66 | 37 | .09 (age) |
| .07 (body weight) | |||||||||
| Chronic kidney disease | 11.8 (7.0‐14.0) | 3.9 (3.2‐4.9) | 18 | 28 | 11.0 (8.2‐14.0) | 4.5 (3.8‐5.5) | 54 | 22 | .87 (age) |
| .03 (body weight) | |||||||||
| Chronic weight loss‐vomiting‐diarrhea‐anorexia | 6.0 (3.6‐11.0) | 3.9 (3.2‐4.7) | 19 | 13 | 10.0 (5.4‐11.8) | 5.3 (4.3‐6.1) | 36 | 14 | .02 (age) |
| <.0001 (body weight) | |||||||||
| Other noncardiovascular diseasesa | 6.5 (2.0‐10.3) | 4.0 (3.2‐4.6) | 19 | 28 | 9.7 (4.0‐12.0) | 4.1 (4.5‐5.6) | 54 | 21 | 0.02 (age) |
| <0.0001 (body weight) | |||||||||
| Unknown causes | 9.0 (3.0‐12.0) | 4.5 (3.9‐6.0) | 24 | 25 | 8.0 (4.0‐11.5) | 5.2 (4.2‐6.4) | 50 | 18 | .18 (age) |
| .80 (body weight) | |||||||||
Note: Data are arranged by cause of death.
Abbreviations: HCM, nonobstructive hypertrophic cardiomyopathy; HOCM, obstructive hypertrophic cardiomyopathy; IQR, interquartile range.
a
Death related to anesthesia, respiratory diseases, central nervous system diseases, hepatobiliary diseases, toxicoses, endocrine diseases, trauma.
b
Includes all cardiovascular, noncardiovascular, and unknown causes of death.